DataOfWorld

Browse source-attributed reference data

Air quality

1,261 published records. Each page names its source and applicable date.

Hattiesburg, MS

US | 41 | Good | 2026-05-31T00:00:00+00:00

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Hawaii County, Hawaii

US | 12 | Good | 2026-04-30T00:00:00+00:00

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Haywood County, North Carolina

US | 47 | Good | 2026-04-30T00:00:00+00:00

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Heber, UT

US | 54 | Moderate | 2026-05-31T00:00:00+00:00

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Hendricks County, Indiana

US | 51 | Moderate | 2026-05-31T00:00:00+00:00

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Henrico County, Virginia

US | 22 | Good | 2026-05-31T00:00:00+00:00

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Henry County, Georgia

US | 44 | Good | 2026-04-30T00:00:00+00:00

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Henry County, Indiana

US | 53 | Moderate | 2026-03-31T00:00:00+00:00

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Hermiston-Pendleton, OR

US | 18 | Good | 2026-04-30T00:00:00+00:00

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Hickory-Lenoir-Morganton, NC

US | 46 | Good | 2026-04-30T00:00:00+00:00

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Hidalgo County, Texas

US | 53 | Moderate | 2026-03-31T00:00:00+00:00

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Highlands County, Florida

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Hillsborough County, Florida

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Hillsborough County, New Hampshire

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Hilo, HI

US | 12 | Good | 2026-04-30T00:00:00+00:00

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Hinds County, Mississippi

US | 2 | Good | 2026-06-01T00:00:00+00:00

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Hobbs, NM

US | 51 | Moderate | 2026-03-31T00:00:00+00:00

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Holland, MI

US | 51 | Moderate | 2026-03-31T00:00:00+00:00

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Holmes County, Florida

US | 31 | Good | 2026-03-31T00:00:00+00:00

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Homosassa Springs, FL

US | 43 | Good | 2026-03-11T00:00:00+00:00

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Honolulu County, Hawaii

US | 5 | Good | 2026-04-01T00:00:00+00:00

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Hood County, Texas

US | 37 | Good | 2026-03-31T00:00:00+00:00

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Hopewell City County, Virginia

US | 4 | Good | 2026-03-15T00:00:00+00:00

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Horry County, South Carolina

US | 37 | Good | 2026-04-30T00:00:00+00:00

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Hot Springs, AR

US | 58 | Moderate | 2026-03-30T00:00:00+00:00

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Houma-Thibodaux, LA

US | 49 | Good | 2026-05-31T00:00:00+00:00

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Houston County, Georgia

US | 41 | Good | 2026-04-30T00:00:00+00:00

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Houston-The Woodlands-Sugar Land, TX

US | 1 | Good | 2026-04-01T00:00:00+00:00

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Howard County, Indiana

US | 35 | Good | 2026-04-30T00:00:00+00:00

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Howard County, Maryland

US | 3 | Good | 2026-04-01T00:00:00+00:00

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Hudson County, New Jersey

US | 7 | Good | 2026-04-01T00:00:00+00:00

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Hughes County, South Dakota

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Humboldt County, California

US | 32 | Good | 2026-03-31T00:00:00+00:00

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Hunt County, Texas

US | 36 | Good | 2026-03-31T00:00:00+00:00

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Hunterdon County, New Jersey

US | 51 | Moderate | 2026-03-31T00:00:00+00:00

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Huntington-Ashland, WV-KY-OH

US | 36 | Good | 2026-04-30T00:00:00+00:00

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Iberville County, Louisiana

US | 28 | Good | 2026-05-31T00:00:00+00:00

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Idaho County, Idaho

US | 33 | Good | 2026-03-31T00:00:00+00:00

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Idaho Falls, ID

US | 47 | Good | 2026-04-27T00:00:00+00:00

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Imperial County, California

US | 19 | Good | 2026-04-26T00:00:00+00:00

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Indian River County, Florida

US | 44 | Good | 2026-03-30T00:00:00+00:00

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Indianapolis-Carmel-Anderson, IN

US | 51 | Moderate | 2026-05-31T00:00:00+00:00

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Ingham County, Michigan

US | 56 | Moderate | 2026-03-31T00:00:00+00:00

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Inyo County, California

US | 51 | Moderate | 2026-04-30T00:00:00+00:00

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Iowa City, IA

US | 37 | Good | 2026-05-31T00:00:00+00:00

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Iron County, Utah

US | 61 | Moderate | 2026-05-31T00:00:00+00:00

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Ithaca, NY

US | 38 | Good | 2026-03-31T00:00:00+00:00

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Jackson County, Arkansas

US | 54 | Moderate | 2026-03-30T00:00:00+00:00

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Jackson County, Mississippi

US | 53 | Moderate | 2026-05-31T00:00:00+00:00

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Jackson County, Missouri

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Jackson County, Oregon

US | 31 | Good | 2026-03-31T00:00:00+00:00

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Jackson County, Wisconsin

US | 29 | Good | 2026-03-31T00:00:00+00:00

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Jackson, MS

US | 2 | Good | 2026-06-01T00:00:00+00:00

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Jackson, TN

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Jackson, WY-ID

US | 58 | Moderate | 2026-04-30T00:00:00+00:00

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Jacksonville, FL

US | 6 | Good | 2026-04-01T00:00:00+00:00

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Jamestown-Dunkirk-Fredonia, NY

US | 41 | Good | 2026-05-28T00:00:00+00:00

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Janesville-Beloit, WI

US | 38 | Good | 2026-03-31T00:00:00+00:00

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Jasper County, Missouri

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Jasper, IN

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Jefferson City, MO

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Jefferson County, Alabama

US | 3 | Good | 2026-04-01T00:00:00+00:00

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Jefferson County, Colorado

US | 33 | Good | 2026-03-31T00:00:00+00:00

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Jefferson County, Louisiana

US | 52 | Moderate | 2026-05-31T00:00:00+00:00

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Jefferson County, Missouri

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Jefferson County, New York

US | 33 | Good | 2026-05-31T00:00:00+00:00

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Jefferson County, Ohio

US | 34 | Good | 2026-04-30T00:00:00+00:00

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Jefferson County, Tennessee

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Jefferson County, Texas

US | 68 | Moderate | 2026-02-28T00:00:00+00:00

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Jefferson County, Washington

US | 18 | Good | 2026-02-28T00:00:00+00:00

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Jefferson County, Wisconsin

US | 28 | Good | 2026-03-31T00:00:00+00:00

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Jersey County, Illinois

US | 47 | Good | 2026-04-30T00:00:00+00:00

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Jessamine County, Kentucky

US | 46 | Good | 2026-03-31T00:00:00+00:00

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Jo Daviess County, Illinois

US | 38 | Good | 2026-03-31T00:00:00+00:00

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Johnson County, Iowa

US | 37 | Good | 2026-05-31T00:00:00+00:00

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Johnson County, Kansas

US | 56 | Moderate | 2026-03-31T00:00:00+00:00

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Johnson County, Texas

US | 38 | Good | 2026-03-31T00:00:00+00:00

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Johnston County, North Carolina

US | 36 | Good | 2026-04-30T00:00:00+00:00

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Johnstown, PA

US | 1 | Good | 2026-04-01T00:00:00+00:00

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Joplin, MO

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Josephine County, Oregon

US | 19 | Good | 2026-03-31T00:00:00+00:00

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Juneau County, Alaska

US | 27 | Good | 2026-03-31T00:00:00+00:00

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Juneau, AK

US | 27 | Good | 2026-03-31T00:00:00+00:00

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Kahului-Wailuku-Lahaina, HI

US | 18 | Good | 2026-03-31T00:00:00+00:00

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Kalamazoo County, Michigan

US | 58 | Moderate | 2026-03-31T00:00:00+00:00

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Kalamazoo-Portage, MI

US | 58 | Moderate | 2026-03-31T00:00:00+00:00

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Kalispell, MT

US | 46 | Good | 2026-04-30T00:00:00+00:00

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Kanawha County, West Virginia

US | 5 | Good | 2026-04-01T00:00:00+00:00

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Kane County, Illinois

US | 34 | Good | 2026-04-30T00:00:00+00:00

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Kansas City, MO-KS

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Karnes County, Texas

US | 2 | Good | 2026-03-31T00:00:00+00:00

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Kaufman County, Texas

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Kay County, Oklahoma

US | 31 | Good | 2026-04-30T00:00:00+00:00

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Keene, NH

US | 45 | Good | 2026-03-31T00:00:00+00:00

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Kennebec County, Maine

US | 31 | Good | 2026-05-31T00:00:00+00:00

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Kennewick-Richland, WA

US | 33 | Good | 2026-02-28T00:00:00+00:00

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Kenosha County, Wisconsin

US | 45 | Good | 2026-03-31T00:00:00+00:00

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Kent County, Maryland

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Kent County, Michigan

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Kent County, Rhode Island

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Kern County, California

US | 52 | Moderate | 2026-04-30T00:00:00+00:00

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Kewaunee County, Wisconsin

US | 36 | Good | 2026-03-31T00:00:00+00:00

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Killeen-Temple, TX

US | 39 | Good | 2026-03-31T00:00:00+00:00

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King County, Washington

US | 34 | Good | 2026-02-28T00:00:00+00:00

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Kings County, California

US | 56 | Moderate | 2026-03-31T00:00:00+00:00

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Kings County, New York

US | 28 | Good | 2026-05-31T00:00:00+00:00

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Kingsport-Bristol-Bristol, TN-VA

US | 33 | Good | 2026-05-31T00:00:00+00:00

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Kinston, NC

US | 31 | Good | 2026-04-30T00:00:00+00:00

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Kiowa County, Oklahoma

US | 44 | Good | 2026-04-30T00:00:00+00:00

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Kitsap County, Washington

US | 17 | Good | 2026-02-28T00:00:00+00:00

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Kittitas County, Washington

US | 31 | Good | 2026-02-28T00:00:00+00:00

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Klamath County, Oregon

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Klamath Falls, OR

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Knox County, Indiana

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Knox County, Maine

US | 32 | Good | 2026-05-31T00:00:00+00:00

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Knox County, Nebraska

US | 37 | Good | 2026-03-31T00:00:00+00:00

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Knox County, Ohio

US | 39 | Good | 2026-04-30T00:00:00+00:00

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Knox County, Tennessee

US | 40 | Good | 2026-05-31T00:00:00+00:00

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Knoxville, TN

US | 40 | Good | 2026-05-31T00:00:00+00:00

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Kokomo, IN

US | 35 | Good | 2026-04-30T00:00:00+00:00

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Kootenai County, Idaho

US | 33 | Good | 2026-03-31T00:00:00+00:00

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La Crosse County, Wisconsin

US | 42 | Good | 2026-03-31T00:00:00+00:00

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La Crosse-Onalaska, WI-MN

US | 42 | Good | 2026-03-31T00:00:00+00:00

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La Grande, OR

US | 14 | Good | 2026-03-27T00:00:00+00:00

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La Paz County, Arizona

US | 43 | Good | 2026-03-31T00:00:00+00:00

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La Plata County, Colorado

US | 58 | Moderate | 2026-04-30T00:00:00+00:00

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Lackawanna County, Pennsylvania

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Laconia, NH

US | 38 | Good | 2026-03-31T00:00:00+00:00

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Lafayette County, Louisiana

US | 34 | Good | 2026-05-31T00:00:00+00:00

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Lafayette, LA

US | 34 | Good | 2026-05-31T00:00:00+00:00

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Lafayette-West Lafayette, IN

US | 42 | Good | 2026-04-30T00:00:00+00:00

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Lafourche County, Louisiana

US | 49 | Good | 2026-05-31T00:00:00+00:00

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Lake Charles, LA

US | 43 | Good | 2026-05-31T00:00:00+00:00

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Lake City, FL

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Lake County, California

US | 18 | Good | 2026-03-27T00:00:00+00:00

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Lake County, Florida

US | 45 | Good | 2026-03-31T00:00:00+00:00

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Lake County, Illinois

US | 33 | Good | 2026-04-30T00:00:00+00:00

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Lake County, Indiana

US | 51 | Moderate | 2026-04-30T00:00:00+00:00

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Lake County, Ohio

US | 39 | Good | 2026-04-30T00:00:00+00:00

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Lake County, Oregon

US | 20 | Good | 2026-03-31T00:00:00+00:00

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Lake Havasu City-Kingman, AZ

US | 29 | Good | 2026-03-31T00:00:00+00:00

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Lakeland-Winter Haven, FL

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Lancaster County, Nebraska

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Lane County, Oregon

US | 36 | Good | 2026-03-31T00:00:00+00:00

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Lansing-East Lansing, MI

US | 56 | Moderate | 2026-03-31T00:00:00+00:00

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LaPorte County, Indiana

US | 37 | Good | 2026-04-30T00:00:00+00:00

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Laramie County, Wyoming

US | 13 | Good | 2026-03-21T00:00:00+00:00

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Laramie, WY

US | 13 | Good | 2026-04-30T00:00:00+00:00

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Laredo, TX

US | 0 | Good | 2026-04-01T00:00:00+00:00

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Larimer County, Colorado

US | 44 | Good | 2026-04-30T00:00:00+00:00

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Las Cruces, NM

US | 53 | Moderate | 2026-03-31T00:00:00+00:00

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Las Vegas-Henderson-Paradise, NV

US | 1 | Good | 2026-05-01T00:00:00+00:00

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Latah County, Idaho

US | 23 | Good | 2026-03-31T00:00:00+00:00

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Lawrence County, Ohio

US | 36 | Good | 2026-04-30T00:00:00+00:00

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Lawrence County, Tennessee

US | 47 | Good | 2026-03-31T00:00:00+00:00

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Lawrence, KS

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Lawrenceburg, TN

US | 47 | Good | 2026-03-31T00:00:00+00:00

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Lawton, OK

US | 38 | Good | 2026-04-30T00:00:00+00:00

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Lea County, New Mexico

US | 51 | Moderate | 2026-03-31T00:00:00+00:00

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Leavenworth County, Kansas

US | 41 | Good | 2026-03-31T00:00:00+00:00

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Lee County, Florida

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Lee County, Mississippi

US | 32 | Good | 2026-05-31T00:00:00+00:00

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Lemhi County, Idaho

US | 17 | Good | 2026-03-31T00:00:00+00:00

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Lenawee County, Michigan

US | 56 | Moderate | 2026-03-31T00:00:00+00:00

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Lenoir County, North Carolina

US | 31 | Good | 2026-04-30T00:00:00+00:00

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Leon County, Florida

US | 48 | Good | 2026-03-31T00:00:00+00:00

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Lewis County, Washington

US | 27 | Good | 2026-02-28T00:00:00+00:00

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Lewiston, ID-WA

US | 35 | Good | 2026-03-31T00:00:00+00:00

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Lewiston-Auburn, ME

US | 27 | Good | 2026-05-31T00:00:00+00:00

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Lexington-Fayette, KY

US | 46 | Good | 2026-03-31T00:00:00+00:00

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Liberty County, Florida

US | 35 | Good | 2026-03-31T00:00:00+00:00

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Licking County, Ohio

US | 37 | Good | 2026-04-30T00:00:00+00:00

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Lima, OH

US | 41 | Good | 2026-04-30T00:00:00+00:00

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Lincoln County, Missouri

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Lincoln County, North Carolina

US | 44 | Good | 2026-04-30T00:00:00+00:00

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Lincoln County, Wyoming

US | 12 | Good | 2026-03-31T00:00:00+00:00

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Lincoln, NE

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Linn County, Iowa

US | 64 | Moderate | 2026-05-31T00:00:00+00:00

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Little Rock-North Little Rock-Conway, AR

US | 0 | Good | 2026-04-01T00:00:00+00:00

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Livingston County, Kentucky

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Livingston County, Louisiana

US | 54 | Moderate | 2026-05-31T00:00:00+00:00

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Logan, UT-ID

US | 45 | Good | 2026-05-31T00:00:00+00:00

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Longview, TX

US | 3 | Good | 2026-03-31T00:00:00+00:00

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Longview, WA

US | 21 | Good | 2026-02-28T00:00:00+00:00

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Lorain County, Ohio

US | 37 | Good | 2026-04-30T00:00:00+00:00

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Los Angeles County, California

US | 80 | Moderate | 2026-04-30T00:00:00+00:00

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Los Angeles-Long Beach-Anaheim, CA

US | 80 | Moderate | 2026-04-30T00:00:00+00:00

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Loudon County, Tennessee

US | 47 | Good | 2026-03-31T00:00:00+00:00

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Loudoun County, Virginia

US | 21 | Good | 2026-05-31T00:00:00+00:00

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Louisville/Jefferson County, KY-IN

US | 49 | Good | 2026-05-31T00:00:00+00:00

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Love County, Oklahoma

US | 31 | Good | 2026-04-30T00:00:00+00:00

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Lowndes County, Georgia

US | 37 | Good | 2026-04-30T00:00:00+00:00

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Lubbock County, Texas

US | 33 | Good | 2026-03-31T00:00:00+00:00

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Lubbock, TX

US | 33 | Good | 2026-03-31T00:00:00+00:00

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Lucas County, Ohio

US | 20 | Good | 2026-05-01T00:00:00+00:00

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Luna County, New Mexico

US | 37 | Good | 2026-03-31T00:00:00+00:00

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Lynchburg City County, Virginia

US | 29 | Good | 2026-05-29T00:00:00+00:00

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Lynchburg, VA

US | 29 | Good | 2026-05-29T00:00:00+00:00

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Macomb County, Michigan

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Macon County, Illinois

US | 44 | Good | 2026-04-30T00:00:00+00:00

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Macon County, North Carolina

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Macon, GA

US | 53 | Moderate | 2026-04-30T00:00:00+00:00

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Macoupin County, Illinois

US | 44 | Good | 2026-04-30T00:00:00+00:00

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Madison County, Illinois

US | 49 | Good | 2026-04-30T00:00:00+00:00

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Madison County, Indiana

US | 19 | Good | 2026-05-31T00:00:00+00:00

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Madison County, Ohio

US | 36 | Good | 2026-04-30T00:00:00+00:00

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Madison County, Tennessee

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Madison County, Virginia

US | 17 | Good | 2026-05-31T00:00:00+00:00

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Madison, WI

US | 53 | Moderate | 2026-03-31T00:00:00+00:00

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Mahoning County, Ohio

US | 36 | Good | 2026-04-30T00:00:00+00:00

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Manatee County, Florida

US | 41 | Good | 2026-03-31T00:00:00+00:00

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Manchester-Nashua, NH

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Manistee County, Michigan

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Manitowoc County, Wisconsin

US | 31 | Good | 2026-03-31T00:00:00+00:00

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Manitowoc, WI

US | 31 | Good | 2026-03-31T00:00:00+00:00

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Marathon County, Wisconsin

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Maricopa County, Arizona

US | 100 | Moderate | 2026-05-31T00:00:00+00:00

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Marietta, OH

US | 33 | Good | 2026-04-30T00:00:00+00:00

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Marion County, Florida

US | 41 | Good | 2026-03-31T00:00:00+00:00

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Marion County, Indiana

US | 51 | Moderate | 2026-05-31T00:00:00+00:00

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Marion County, Oregon

US | 4 | Good | 2026-03-24T00:00:00+00:00

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Marion County, West Virginia

US | 41 | Good | 2026-03-30T00:00:00+00:00

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Mariposa County, California

US | 43 | Good | 2026-04-30T00:00:00+00:00

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Marquette County, Michigan

US | 18 | Good | 2026-03-31T00:00:00+00:00

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Marquette, MI

US | 18 | Good | 2026-03-31T00:00:00+00:00

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Marshall County, West Virginia

US | 44 | Good | 2026-03-30T00:00:00+00:00

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Marshall, TX

US | 58 | Moderate | 2026-03-31T00:00:00+00:00

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Martin County, Florida

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Martin County, North Carolina

US | 29 | Good | 2026-04-30T00:00:00+00:00

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Mason County, Washington

US | 26 | Good | 2026-02-28T00:00:00+00:00

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Maui County, Hawaii

US | 18 | Good | 2026-03-31T00:00:00+00:00

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Maury County, Tennessee

US | 49 | Good | 2026-03-31T00:00:00+00:00

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Maverick County, Texas

US | 54 | Moderate | 2026-03-31T00:00:00+00:00

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Mayes County, Oklahoma

US | 43 | Good | 2026-03-31T00:00:00+00:00

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McAlester, OK

US | 32 | Good | 2026-04-30T00:00:00+00:00

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McAllen-Edinburg-Mission, TX

US | 53 | Moderate | 2026-03-31T00:00:00+00:00

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McClain County, Oklahoma

US | 38 | Good | 2026-04-30T00:00:00+00:00

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McCracken County, Kentucky

US | 44 | Good | 2026-03-31T00:00:00+00:00

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McHenry County, Illinois

US | 33 | Good | 2026-04-30T00:00:00+00:00

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McKenzie County, North Dakota

US | 39 | Good | 2026-03-31T00:00:00+00:00

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McLean County, Illinois

US | 44 | Good | 2026-04-30T00:00:00+00:00

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McLennan County, Texas

US | 3 | Good | 2026-04-01T00:00:00+00:00

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McMinn County, Tennessee

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Mecklenburg County, North Carolina

US | 2 | Good | 2026-06-01T00:00:00+00:00

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Medford, OR

US | 31 | Good | 2026-03-31T00:00:00+00:00

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Medina County, Ohio

US | 61 | Moderate | 2026-05-31T00:00:00+00:00

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Memphis, TN-MS-AR

US | 50 | Good | 2026-05-31T00:00:00+00:00

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Mercer County, New Jersey

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Mercer County, North Dakota

US | 35 | Good | 2026-03-31T00:00:00+00:00

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Mercer County, Pennsylvania

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Merrimack County, New Hampshire

US | 32 | Good | 2026-03-31T00:00:00+00:00

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Mesa County, Colorado

US | 19 | Good | 2026-04-30T00:00:00+00:00

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Miami County, Ohio

US | 43 | Good | 2026-04-30T00:00:00+00:00

View data

Miami-Dade County, Florida

US | 7 | Good | 2026-04-01T00:00:00+00:00

View data

Miami-Fort Lauderdale-West Palm Beach, FL

US | 7 | Good | 2026-04-01T00:00:00+00:00

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Michigan City-La Porte, IN

US | 37 | Good | 2026-04-30T00:00:00+00:00

View data

Middlesborough, KY

US | 53 | Moderate | 2026-03-31T00:00:00+00:00

View data

Middlesex County, Massachusetts

US | 46 | Good | 2026-02-28T00:00:00+00:00

View data

Middlesex County, New Jersey

US | 44 | Good | 2026-03-31T00:00:00+00:00

View data

Milwaukee County, Wisconsin

US | 2 | Good | 2026-04-01T00:00:00+00:00

View data

Milwaukee-Waukesha-West Allis, WI

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Minnehaha County, South Dakota

US | 5 | Good | 2026-04-01T00:00:00+00:00

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Minot, ND

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Missaukee County, Michigan

US | 35 | Good | 2026-03-31T00:00:00+00:00

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Mitchell County, North Carolina

US | 13 | Good | 2026-04-30T00:00:00+00:00

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Mobile County, Alabama

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Mobile, AL

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Modesto, CA

US | 31 | Good | 2026-04-26T00:00:00+00:00

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Mohave County, Arizona

US | 29 | Good | 2026-03-31T00:00:00+00:00

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Monmouth County, New Jersey

US | 51 | Moderate | 2026-03-31T00:00:00+00:00

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Monongalia County, West Virginia

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Monroe County, Indiana

US | 32 | Good | 2026-04-30T00:00:00+00:00

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Monroe County, Missouri

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Monroe County, New York

US | 26 | Good | 2026-05-31T00:00:00+00:00

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Monroe County, Wisconsin

US | 32 | Good | 2026-03-31T00:00:00+00:00

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Monroe, LA

US | 53 | Moderate | 2026-05-31T00:00:00+00:00

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Monterey County, California

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Montezuma County, Colorado

US | 54 | Moderate | 2026-04-30T00:00:00+00:00

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Montgomery County, Alabama

US | 48 | Good | 2026-03-31T00:00:00+00:00

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Montgomery County, Iowa

US | 45 | Good | 2026-05-31T00:00:00+00:00

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Montgomery County, Maryland

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Montgomery County, North Carolina

US | 24 | Good | 2026-04-30T00:00:00+00:00

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Montgomery County, Ohio

US | 43 | Good | 2026-04-30T00:00:00+00:00

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Montgomery County, Tennessee

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Montgomery County, Texas

US | 80 | Moderate | 2026-02-28T00:00:00+00:00

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Montgomery, AL

US | 48 | Good | 2026-03-31T00:00:00+00:00

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Morehead City, NC

US | 41 | Good | 2026-03-31T00:00:00+00:00

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Morgan County, Alabama

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Morgan County, Kentucky

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Morgantown, WV

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Morris County, New Jersey

US | 51 | Moderate | 2026-03-31T00:00:00+00:00

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Morristown, TN

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Moscow, ID

US | 23 | Good | 2026-03-31T00:00:00+00:00

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Moses Lake, WA

US | 29 | Good | 2026-02-28T00:00:00+00:00

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Mount Vernon, IL

US | 46 | Good | 2026-04-30T00:00:00+00:00

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Mount Vernon, OH

US | 39 | Good | 2026-04-30T00:00:00+00:00

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Mount Vernon-Anacortes, WA

US | 18 | Good | 2026-02-28T00:00:00+00:00

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Multnomah County, Oregon

US | 1 | Good | 2026-04-01T00:00:00+00:00

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Muncie, IN

US | 41 | Good | 2026-04-30T00:00:00+00:00

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Murray County, Georgia

US | 42 | Good | 2026-04-30T00:00:00+00:00

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Muscatine County, Iowa

US | 52 | Moderate | 2026-05-31T00:00:00+00:00

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Muscatine, IA

US | 52 | Moderate | 2026-05-31T00:00:00+00:00

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Muscogee County, Georgia

US | 35 | Good | 2026-04-30T00:00:00+00:00

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Muskegon County, Michigan

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Muskegon, MI

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Myrtle Beach-Conway-North Myrtle Beach, SC-NC

US | 37 | Good | 2026-04-30T00:00:00+00:00

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Naples-Immokalee-Marco Island, FL

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Nashville-Davidson--Murfreesboro--Franklin, TN

US | 6 | Good | 2026-04-01T00:00:00+00:00

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Nassau County, New York

US | 31 | Good | 2026-05-31T00:00:00+00:00

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Natrona County, Wyoming

US | 35 | Good | 2026-03-31T00:00:00+00:00

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Navajo County, Arizona

US | 19 | Good | 2026-03-31T00:00:00+00:00

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Navarro County, Texas

US | 46 | Good | 2026-03-31T00:00:00+00:00

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Neosho County, Kansas

US | 55 | Moderate | 2026-03-31T00:00:00+00:00

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Nevada County, California

US | 7 | Good | 2026-03-31T00:00:00+00:00

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New Castle, IN

US | 53 | Moderate | 2026-03-31T00:00:00+00:00

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New Hanover County, North Carolina

US | 37 | Good | 2026-04-30T00:00:00+00:00

View data

New Orleans-Metairie, LA

US | 3 | Good | 2026-06-01T00:00:00+00:00

View data

New York County, New York

US | 2 | Good | 2026-06-01T00:00:00+00:00

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New York-Newark-Jersey City, NY-NJ-PA

US | 2 | Good | 2026-06-01T00:00:00+00:00

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Newton County, Arkansas

US | 67 | Moderate | 2026-03-25T00:00:00+00:00

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Nez Perce County, Idaho

US | 35 | Good | 2026-03-31T00:00:00+00:00

View data

Niagara County, New York

US | 44 | Good | 2026-05-31T00:00:00+00:00

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Niles-Benton Harbor, MI

US | 36 | Good | 2026-03-31T00:00:00+00:00

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Noble County, Ohio

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Nogales, AZ

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Norfolk City County, Virginia

US | 22 | Good | 2026-05-31T00:00:00+00:00

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Norfolk County, Massachusetts

US | 46 | Good | 2026-02-28T00:00:00+00:00

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North Port-Sarasota-Bradenton, FL

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Northampton County, North Carolina

US | 22 | Good | 2026-04-30T00:00:00+00:00

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Nowata County, Oklahoma

US | 41 | Good | 2026-04-30T00:00:00+00:00

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Nueces County, Texas

US | 51 | Moderate | 2026-03-31T00:00:00+00:00

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Oakland County, Michigan

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Ocala, FL

US | 41 | Good | 2026-03-31T00:00:00+00:00

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Ocean County, New Jersey

US | 50 | Good | 2026-03-31T00:00:00+00:00

View data

Odessa, TX

US | 105 | Unhealthy for Sensitive Groups | 2026-03-31T00:00:00+00:00

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Ogden-Clearfield, UT

US | 2 | Good | 2026-06-01T00:00:00+00:00

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Ohio County, West Virginia

US | 36 | Good | 2026-03-31T00:00:00+00:00

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Okaloosa County, Florida

US | 38 | Good | 2026-03-31T00:00:00+00:00

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Okanogan County, Washington

US | 51 | Moderate | 2026-02-28T00:00:00+00:00

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Oklahoma City, OK

US | 5 | Good | 2026-05-01T00:00:00+00:00

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Oklahoma County, Oklahoma

US | 5 | Good | 2026-05-01T00:00:00+00:00

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Oldham County, Kentucky

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Oliver County, North Dakota

US | 39 | Good | 2026-03-31T00:00:00+00:00

View data

Olympia-Tumwater, WA

US | 24 | Good | 2026-01-31T00:00:00+00:00

View data

Omaha-Council Bluffs, NE-IA

US | 50 | Good | 2026-05-31T00:00:00+00:00

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Oneida County, New York

US | 17 | Good | 2026-05-31T00:00:00+00:00

View data

Onondaga County, New York

US | 37 | Good | 2026-05-31T00:00:00+00:00

View data

Orange County, California

US | 54 | Moderate | 2026-04-30T00:00:00+00:00

View data

Orange County, Florida

US | 6 | Good | 2026-04-01T00:00:00+00:00

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Orange County, New York

US | 7 | Good | 2026-05-31T00:00:00+00:00

View data

Orange County, Texas

US | 68 | Moderate | 2026-02-28T00:00:00+00:00

View data

Orlando-Kissimmee-Sanford, FL

US | 6 | Good | 2026-04-01T00:00:00+00:00

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Orleans County, Louisiana

US | 3 | Good | 2026-06-01T00:00:00+00:00

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Osage County, Oklahoma

US | 42 | Good | 2026-04-30T00:00:00+00:00

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Osceola County, Florida

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Oswego County, New York

US | 40 | Good | 2026-05-31T00:00:00+00:00

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Othello, WA

US | 18 | Good | 2026-02-28T00:00:00+00:00

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Ottawa County, Michigan

US | 57 | Moderate | 2026-03-31T00:00:00+00:00

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Ouachita County, Louisiana

US | 53 | Moderate | 2026-05-31T00:00:00+00:00

View data

Outagamie County, Wisconsin

US | 35 | Good | 2026-03-31T00:00:00+00:00

View data

Owensboro, KY

US | 57 | Moderate | 2026-03-31T00:00:00+00:00

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Oxford County, Maine

US | 32 | Good | 2026-05-31T00:00:00+00:00

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Oxford, NC

US | 42 | Good | 2026-04-30T00:00:00+00:00

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Oxnard-Thousand Oaks-Ventura, CA

US | 43 | Good | 2026-01-31T00:00:00+00:00

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Ozaukee County, Wisconsin

US | 33 | Good | 2026-03-31T00:00:00+00:00

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Pacific County, Washington

US | 14 | Good | 2026-02-28T00:00:00+00:00

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Paducah, KY-IL

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Palatka, FL

US | 48 | Good | 2026-03-31T00:00:00+00:00

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Palm Bay-Melbourne-Titusville, FL

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Palm Beach County, Florida

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Palo Alto County, Iowa

US | 44 | Good | 2026-05-31T00:00:00+00:00

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Panama City, FL

US | 49 | Good | 2026-03-31T00:00:00+00:00

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Park County, Wyoming

US | 16 | Good | 2026-04-30T00:00:00+00:00

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Parker County, Texas

US | 35 | Good | 2026-03-31T00:00:00+00:00

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Parkersburg-Vienna, WV

US | 54 | Moderate | 2026-03-30T00:00:00+00:00

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Pasco County, Florida

US | 51 | Moderate | 2026-03-31T00:00:00+00:00

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Passaic County, New Jersey

US | 49 | Good | 2026-03-31T00:00:00+00:00

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Payson, AZ

US | 55 | Moderate | 2026-03-31T00:00:00+00:00

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Penobscot County, Maine

US | 45 | Good | 2026-05-31T00:00:00+00:00

View data

Pensacola-Ferry Pass-Brent, FL

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Peoria County, Illinois

US | 48 | Good | 2026-04-30T00:00:00+00:00

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Peoria, IL

US | 48 | Good | 2026-04-30T00:00:00+00:00

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Perry County, Indiana

US | 42 | Good | 2026-05-31T00:00:00+00:00

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Perry County, Kentucky

US | 45 | Good | 2026-03-31T00:00:00+00:00

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Perry County, Missouri

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Person County, North Carolina

US | 45 | Good | 2026-04-30T00:00:00+00:00

View data

Philadelphia County, Pennsylvania

US | 6 | Good | 2026-04-01T00:00:00+00:00

View data

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD

US | 6 | Good | 2026-04-01T00:00:00+00:00

View data

Phoenix-Mesa-Scottsdale, AZ

US | 100 | Moderate | 2026-05-31T00:00:00+00:00

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Pierce County, Washington

US | 44 | Good | 2026-02-28T00:00:00+00:00

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Pierre, SD

US | 42 | Good | 2026-03-31T00:00:00+00:00

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Pike County, Georgia

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Pike County, Kentucky

US | 57 | Moderate | 2026-03-31T00:00:00+00:00

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Pima County, Arizona

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Pinal County, Arizona

US | 59 | Moderate | 2026-03-31T00:00:00+00:00

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Pinellas County, Florida

US | 3 | Good | 2026-04-01T00:00:00+00:00

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Pitkin County, Colorado

US | 16 | Good | 2026-04-30T00:00:00+00:00

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Pitt County, North Carolina

US | 36 | Good | 2026-04-30T00:00:00+00:00

View data

Pittsburg County, Oklahoma

US | 32 | Good | 2026-04-30T00:00:00+00:00

View data

Pittsburgh, PA

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Pittsfield, MA

US | 56 | Moderate | 2026-02-28T00:00:00+00:00

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Placer County, California

US | 52 | Moderate | 2026-04-30T00:00:00+00:00

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Platteville, WI

US | 34 | Good | 2026-03-31T00:00:00+00:00

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Plumas County, California

US | 33 | Good | 2026-04-08T00:00:00+00:00

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Plymouth County, Massachusetts

US | 44 | Good | 2026-02-28T00:00:00+00:00

View data

Pocatello, ID

US | 16 | Good | 2026-05-31T00:00:00+00:00

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Pointe Coupee County, Louisiana

US | 40 | Good | 2026-05-31T00:00:00+00:00

View data

Polk County, Arkansas

US | 63 | Moderate | 2026-03-30T00:00:00+00:00

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Polk County, Florida

US | 40 | Good | 2026-03-31T00:00:00+00:00

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Polk County, Iowa

US | 52 | Moderate | 2026-05-31T00:00:00+00:00

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Polk County, Texas

US | 34 | Good | 2026-03-31T00:00:00+00:00

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Ponca City, OK

US | 31 | Good | 2026-04-30T00:00:00+00:00

View data

Ponce County, Puerto Rico

US | 54 | Moderate | 2026-02-13T00:00:00+00:00

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Ponce, PR

US | 54 | Moderate | 2026-02-13T00:00:00+00:00

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Port Angeles, WA

US | 17 | Good | 2026-02-28T00:00:00+00:00

View data

Port St. Lucie, FL

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Portage County, Ohio

US | 50 | Good | 2026-05-31T00:00:00+00:00

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Porter County, Indiana

US | 37 | Good | 2026-04-30T00:00:00+00:00

View data

Portland-South Portland, ME

US | 40 | Good | 2026-05-31T00:00:00+00:00

View data

Portland-Vancouver-Hillsboro, OR-WA

US | 2 | Good | 2026-04-01T00:00:00+00:00

View data

Portsmouth, OH

US | 241 | Very Unhealthy | 2026-04-30T00:00:00+00:00

View data

Posey County, Indiana

US | 49 | Good | 2026-05-31T00:00:00+00:00

View data

Pottawattamie County, Iowa

US | 31 | Good | 2026-04-29T00:00:00+00:00

View data

Potter County, Texas

US | 55 | Moderate | 2026-03-31T00:00:00+00:00

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Preble County, Ohio

US | 1 | Good | 2026-05-01T00:00:00+00:00

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Prescott, AZ

US | 43 | Good | 2026-03-31T00:00:00+00:00

View data

Price, UT

US | 64 | Moderate | 2026-05-31T00:00:00+00:00

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Prince Edward County, Virginia

US | 46 | Good | 2026-03-31T00:00:00+00:00

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Prince George's County, Maryland

US | 1 | Good | 2026-04-01T00:00:00+00:00

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Prince William County, Virginia

US | 41 | Good | 2026-04-30T00:00:00+00:00

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Prineville, OR

US | 32 | Good | 2026-03-31T00:00:00+00:00

View data

Providence County, Rhode Island

US | 2 | Good | 2026-04-01T00:00:00+00:00

View data

Providence-Warwick, RI-MA

US | 2 | Good | 2026-04-01T00:00:00+00:00

View data

Provo-Orem, UT

US | 2 | Good | 2026-06-01T00:00:00+00:00

View data

Prowers County, Colorado

US | 24 | Good | 2026-04-30T00:00:00+00:00

View data

Pueblo County, Colorado

US | 18 | Good | 2026-04-30T00:00:00+00:00

View data

Pueblo, CO

US | 18 | Good | 2026-04-30T00:00:00+00:00

View data

Pulaski County, Arkansas

US | 0 | Good | 2026-04-01T00:00:00+00:00

View data

Pulaski County, Kentucky

US | 46 | Good | 2026-03-31T00:00:00+00:00

View data

Pullman, WA

US | 17 | Good | 2026-02-28T00:00:00+00:00

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Putnam County, Florida

US | 48 | Good | 2026-03-31T00:00:00+00:00

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Putnam County, New York

US | 28 | Good | 2026-05-31T00:00:00+00:00

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Putnam County, Tennessee

US | 39 | Good | 2026-03-31T00:00:00+00:00

View data

Queens County, New York

US | 2 | Good | 2026-06-01T00:00:00+00:00

View data

Quincy, IL-MO

US | 42 | Good | 2026-04-30T00:00:00+00:00

View data

Racine County, Wisconsin

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Racine, WI

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Raleigh, NC

US | 39 | Good | 2026-04-30T00:00:00+00:00

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Randall County, Texas

US | 48 | Good | 2026-03-31T00:00:00+00:00

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Randolph County, Illinois

US | 46 | Good | 2026-04-30T00:00:00+00:00

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Redding, CA

US | 37 | Good | 2026-04-30T00:00:00+00:00

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Reno, NV

US | 0 | Good | 2026-04-01T00:00:00+00:00

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Richland County, South Carolina

US | 34 | Good | 2026-05-31T00:00:00+00:00

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Richmond City County, Virginia

US | 19 | Good | 2026-05-31T00:00:00+00:00

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Richmond County, Georgia

US | 46 | Good | 2026-04-30T00:00:00+00:00

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Richmond County, New York

US | 38 | Good | 2026-05-31T00:00:00+00:00

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Richmond, VA

US | 22 | Good | 2026-05-31T00:00:00+00:00

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Rio Arriba County, New Mexico

US | 48 | Good | 2026-03-31T00:00:00+00:00

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Riverside County, California

US | 80 | Moderate | 2026-05-31T00:00:00+00:00

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Riverside-San Bernardino-Ontario, CA

US | 80 | Moderate | 2026-05-31T00:00:00+00:00

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Riverton, WY

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Roane County, Tennessee

US | 43 | Good | 2026-03-31T00:00:00+00:00

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Roanoke County, Virginia

US | 18 | Good | 2026-05-31T00:00:00+00:00

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Roanoke Rapids, NC

US | 22 | Good | 2026-04-30T00:00:00+00:00

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Roanoke, VA

US | 18 | Good | 2026-05-31T00:00:00+00:00

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Rochester, NY

US | 41 | Good | 2026-05-31T00:00:00+00:00

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Rock County, Wisconsin

US | 38 | Good | 2026-03-31T00:00:00+00:00

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Rock Island County, Illinois

US | 48 | Good | 2026-04-30T00:00:00+00:00

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Rock Springs, WY

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Rockbridge County, Virginia

US | 43 | Good | 2026-04-30T00:00:00+00:00

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Rockdale County, Georgia

US | 39 | Good | 2026-04-30T00:00:00+00:00

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Rockford, IL

US | 38 | Good | 2026-04-30T00:00:00+00:00

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Rockingham County, New Hampshire

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Rockingham County, North Carolina

US | 45 | Good | 2026-04-30T00:00:00+00:00

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Rockingham County, Virginia

US | 19 | Good | 2026-05-31T00:00:00+00:00

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Rockland County, New York

US | 35 | Good | 2026-05-31T00:00:00+00:00

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Rockland, ME

US | 32 | Good | 2026-05-31T00:00:00+00:00

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Rockwall County, Texas

US | 33 | Good | 2026-03-31T00:00:00+00:00

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Rocky Mount, NC

US | 36 | Good | 2026-04-30T00:00:00+00:00

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Rome, GA

US | 16 | Good | 2026-04-30T00:00:00+00:00

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Routt County, Colorado

US | 17 | Good | 2026-04-30T00:00:00+00:00

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Rowan County, North Carolina

US | 45 | Good | 2026-04-30T00:00:00+00:00

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Russell County, Alabama

US | 38 | Good | 2026-03-31T00:00:00+00:00

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Rutland County, Vermont

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Rutland, VT

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Sacramento County, California

US | 32 | Good | 2026-04-29T00:00:00+00:00

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Sacramento--Roseville--Arden-Arcade, CA

US | 52 | Moderate | 2026-04-30T00:00:00+00:00

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Sagadahoc County, Maine

US | 29 | Good | 2026-05-31T00:00:00+00:00

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Saint Charles County, Missouri

US | 39 | Good | 2026-03-31T00:00:00+00:00

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Saint Clair County, Illinois

US | 46 | Good | 2026-04-30T00:00:00+00:00

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Saint Louis County, Minnesota

US | 32 | Good | 2026-04-30T00:00:00+00:00

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Saint Louis County, Missouri

US | 52 | Moderate | 2026-03-31T00:00:00+00:00

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Sainte Genevieve County, Missouri

US | 44 | Good | 2026-03-31T00:00:00+00:00

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Salem City County, Virginia

US | 18 | Good | 2026-05-31T00:00:00+00:00

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Salem, OH

US | 14 | Good | 2026-04-26T00:00:00+00:00

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Salem, OR

US | 4 | Good | 2026-03-24T00:00:00+00:00

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Salinas, CA

US | 2 | Good | 2026-04-01T00:00:00+00:00

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Salt Lake City, UT

US | 2 | Good | 2026-06-01T00:00:00+00:00

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Salt Lake County, Utah

US | 2 | Good | 2026-06-01T00:00:00+00:00

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San Antonio-New Braunfels, TX

US | 1 | Good | 2026-04-01T00:00:00+00:00

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