Explore Air Quality by City
Your entry point to US city air quality data. Check AQI today, compare median AQI in 2021, and see unhealthy days per year for any city. Browse EPA-based Clean Air Scores, see how cities compare in our National Rankings, and learn about our data sources in the Methodology.
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| City | State | Score | Grade | PM2.5 (Ann.) | Trend | |
|---|---|---|---|---|---|---|
| Franklin | TN | 72.1 | Grade B | 8 | Stable | View |
| Eden Prairie | MN | 72.1 | Grade B | 7.7 | Worsening β | View |
| Minnetonka | MN | 72.1 | Grade B | 7.7 | Worsening β | View |
| Smyrna | TN | 72.1 | Grade B | 8 | Stable | View |
| Brentwood | TN | 72.1 | Grade B | 8 | Stable | View |
| La Vergne | TN | 72.1 | Grade B | 8 | Stable | View |
| San Luis | AZ | 72.1 | Grade B | 8 | Stable | View |
| Brentwood Estates | TN | 72.1 | Grade B | 8 | Stable | View |
| Fortuna Foothills | AZ | 72.1 | Grade B | 8 | Stable | View |
| Chanhassen | MN | 72.1 | Grade B | 7.7 | Worsening β | View |
| Prior Lake | MN | 72.1 | Grade B | 7.7 | Worsening β | View |
| Chaska | MN | 72.1 | Grade B | 7.7 | Worsening β | View |
| Hopkins | MN | 72.1 | Grade B | 7.7 | Worsening β | View |
| Yakima | WA | 71.8 | Grade B | 7.1 | Improving β | View |
| Charlotte | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Concord | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Gastonia | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Huntersville | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Kannapolis | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Indian Trail | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Mooresville | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Monroe | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Matthews | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Cornelius | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Mint Hill | NC | 71.7 | Grade B | 8.1 | Improving β | View |
| Glendale | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Lexington | NC | 71.5 | Grade B | 8.1 | Improving β | View |
| Temple | TX | 71.5 | Grade B | 7.7 | Improving β | View |
| Maryvale | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Peoria | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Deer Valley | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Killeen | TX | 71.5 | Grade B | 7.7 | Improving β | View |
| Waco | TX | 71.5 | Grade B | 7.7 | Improving β | View |
| Surprise | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Alhambra | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Avondale | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Goodyear | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Buckeye | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Sun City | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Salisbury | NC | 71.5 | Grade B | 8.1 | Improving β | View |
| El Mirage | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Copperas Cove | TX | 71.5 | Grade B | 7.7 | Improving β | View |
| Fort Hood | TX | 71.5 | Grade B | 7.7 | Improving β | View |
| Harker Heights | TX | 71.5 | Grade B | 7.7 | Improving β | View |
| Thomasville | NC | 71.5 | Grade B | 8.1 | Improving β | View |
| Sun City West | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Anthem | AZ | 71.5 | Grade B | 7.5 | Worsening β | View |
| Belton | TX | 71.5 | Grade B | 7.7 | Improving β | View |
| Naperville | IL | 71.3 | Grade B | 8.2 | Improving β | View |
| Aurora | IL | 71.3 | Grade B | 8.2 | Improving β | View |