Know the Air You Breathe
Real-time air quality data for every US city and ZIP code. Make informed decisions about outdoor activities.
100+
Cities Covered
500+
ZIP Codes
24/7
Real-time Monitoring
Understanding the Air Quality Index (AQI)
0-50
Good
51-100
Moderate
101-150
Unhealthy for Sensitive
151-200
Unhealthy
201-300
Very Unhealthy
301+
Hazardous
Major US Cities
New York
New York
Pop: 8,336,817
Los Angeles
California
Pop: 3,979,576
Chicago
Illinois
Pop: 2,693,976
Houston
Texas
Pop: 2,320,268
Phoenix
Arizona
Pop: 1,680,992
Philadelphia
Pennsylvania
Pop: 1,584,064
San Antonio
Texas
Pop: 1,547,253
San Diego
California
Pop: 1,423,851
Dallas
Texas
Pop: 1,343,573
San Jose
California
Pop: 1,021,795
Austin
Texas
Pop: 978,908
Jacksonville
Florida
Pop: 949,611
Browse by State
AL
Alabama
1 city
AZ
Arizona
7 cities
CA
California
20 cities
CO
Colorado
3 cities
DC
District of Columbia
1 city
FL
Florida
6 cities
GA
Georgia
1 city
HI
Hawaii
1 city
ID
Idaho
1 city
IL
Illinois
1 city
IN
Indiana
1 city
KY
Kentucky
1 city
LA
Louisiana
1 city
MD
Maryland
1 city
MA
Massachusetts
1 city
MN
Minnesota
2 cities
MO
Missouri
2 cities
NE
Nebraska
2 cities
NV
Nevada
4 cities
NJ
New Jersey
2 cities
NM
New Mexico
1 city
NY
New York
3 cities
NC
North Carolina
5 cities
OH
Ohio
4 cities
OK
Oklahoma
2 cities
OR
Oregon
1 city
PA
Pennsylvania
2 cities
TN
Tennessee
2 cities
TX
Texas
14 cities
VA
Virginia
3 cities
WA
Washington
2 cities
WI
Wisconsin
2 cities
Why Choose Clean Air Data?
Real-time Data
Hourly updates directly from EPA monitoring stations across the US.
Nationwide Coverage
Air quality data for 100+ cities and 500+ ZIP codes nationwide.
Historical Trends
View past AQI levels and track air quality patterns over time.