Air Quality by State

Browse air quality data for 51 US states and territories. Click any state to see detailed city-by-city air quality information.

Alabama

AQI 48
2 citiesAvg: Good

Alaska

AQI 20
1 cityAvg: Good

Arizona

AQI 55
4 citiesAvg: Moderate

Arkansas

AQI 60
1 cityAvg: Moderate

California

AQI 58
15 citiesAvg: Moderate

Colorado

AQI 56
4 citiesAvg: Moderate

Connecticut

AQI 38
2 citiesAvg: Good

Delaware

AQI 52
1 cityAvg: Moderate

District of Columbia

AQI 43
1 cityAvg: Good

Florida

AQI 49
10 citiesAvg: Good

Georgia

AQI 53
4 citiesAvg: Moderate

Hawaii

AQI 25
1 cityAvg: Good

Idaho

AQI 55
1 cityAvg: Moderate

Illinois

AQI 56
5 citiesAvg: Moderate

Indiana

AQI 53
2 citiesAvg: Moderate

Iowa

AQI 41
1 cityAvg: Good

Kansas

AQI 47
1 cityAvg: Good

Kentucky

AQI 51
2 citiesAvg: Moderate

Louisiana

AQI 41
2 citiesAvg: Good

Maine

AQI 42
1 cityAvg: Good

Maryland

AQI 39
1 cityAvg: Good

Massachusetts

AQI 48
4 citiesAvg: Good

Michigan

AQI 51
5 citiesAvg: Moderate

Minnesota

AQI 50
2 citiesAvg: Good

Mississippi

AQI 42
1 cityAvg: Good

Missouri

AQI 58
2 citiesAvg: Moderate

Montana

AQI 49
1 cityAvg: Good

Nebraska

AQI 44
2 citiesAvg: Good

Nevada

AQI 38
2 citiesAvg: Good

New Hampshire

AQI 47
1 cityAvg: Good

New Jersey

AQI 53
4 citiesAvg: Moderate

New Mexico

AQI 50
2 citiesAvg: Good

New York

AQI 51
8 citiesAvg: Moderate

North Carolina

AQI 49
5 citiesAvg: Good

North Dakota

AQI 39
1 cityAvg: Good

Ohio

AQI 51
6 citiesAvg: Moderate

Oklahoma

AQI 44
2 citiesAvg: Good

Oregon

AQI 46
1 cityAvg: Good

Pennsylvania

AQI 56
6 citiesAvg: Moderate

Rhode Island

AQI 61
1 cityAvg: Moderate

South Carolina

AQI 49
2 citiesAvg: Good

South Dakota

AQI 60
1 cityAvg: Moderate

Tennessee

AQI 43
3 citiesAvg: Good

Texas

AQI 52
12 citiesAvg: Moderate

Utah

AQI 83
1 cityAvg: Moderate

Vermont

AQI 46
1 cityAvg: Good

Virginia

AQI 46
3 citiesAvg: Good

Washington

AQI 46
4 citiesAvg: Good

West Virginia

AQI 50
1 cityAvg: Good

Wisconsin

AQI 59
2 citiesAvg: Moderate

Wyoming

AQI 58
1 cityAvg: Moderate

Understanding State Air Quality

Air quality varies significantly across different states due to factors like population density, industrial activity, geography, and climate. States with major urban centers or industrial areas may have higher pollution levels, while rural or coastal states often enjoy cleaner air.

The average AQI shown for each state is calculated from all monitored cities within that state. Click on any state to see detailed air quality data for individual cities, including current conditions and forecasts.