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 | |
|---|---|---|---|---|---|---|
| Mukilteo | WA | 72.8 | Grade B | 7.9 | Improving β | View |
| West Lake Stevens | WA | 72.8 | Grade B | 7.9 | Improving β | View |
| Silver Firs | WA | 72.8 | Grade B | 7.9 | Improving β | View |
| Douglas | IN | 72.8 | Grade B | 7.9 | Improving β | View |
| Eastmont | WA | 72.8 | Grade B | 7.9 | Improving β | View |
| Mill Creek | WA | 72.8 | Grade B | 7.9 | Improving β | View |
| West Elsdon | IN | 72.8 | Grade B | 7.9 | Improving β | View |
| Arlington | WA | 72.8 | Grade B | 7.9 | Improving β | View |
| Monroe | WA | 72.8 | Grade B | 7.9 | Improving β | View |
| Kenwood | IN | 72.8 | Grade B | 7.9 | Improving β | View |
| Arden-Arcade | CA | 72.7 | Grade B | 7.8 | Stable | View |
| Elk Grove | CA | 72.7 | Grade B | 7.8 | Stable | View |
| Rancho Cordova | CA | 72.7 | Grade B | 7.8 | Stable | View |
| Carmichael | CA | 72.7 | Grade B | 7.8 | Stable | View |
| North Highlands | CA | 72.7 | Grade B | 7.8 | Stable | View |
| Foothill Farms | CA | 72.7 | Grade B | 7.8 | Stable | View |
| Vineyard | CA | 72.7 | Grade B | 7.8 | Stable | View |
| Rosemont | CA | 72.7 | Grade B | 7.8 | Stable | View |
| Minneapolis | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Winston-Salem | NC | 72.6 | Grade B | 7.7 | Improving β | View |
| Bellevue | NE | 72.6 | Grade B | 7.6 | Stable | View |
| Saint Paul | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Lincoln | NE | 72.6 | Grade B | 7.6 | Stable | View |
| Plymouth | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Maple Grove | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Woodbury | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Edina | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Minnetonka Mills | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Saint Louis Park | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Maplewood | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Richfield | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Roseville | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Brooklyn Center | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Oakdale | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Kernersville | NC | 72.6 | Grade B | 7.7 | Improving β | View |
| Crystal | MN | 72.6 | Grade B | 7.6 | Stable | View |
| New Brighton | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Golden Valley | MN | 72.6 | Grade B | 7.6 | Stable | View |
| New Hope | MN | 72.6 | Grade B | 7.6 | Stable | View |
| South Saint Paul | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Clemmons | NC | 72.6 | Grade B | 7.7 | Improving β | View |
| Columbia Heights | MN | 72.6 | Grade B | 7.6 | Stable | View |
| West Saint Paul | MN | 72.6 | Grade B | 7.6 | Stable | View |
| Papillion | NE | 72.6 | Grade B | 7.6 | Stable | View |
| Pascagoula | MS | 72.2 | Grade B | 8 | Stable | View |
| Gautier | MS | 72.2 | Grade B | 8 | Stable | View |
| Yuma | AZ | 72.1 | Grade B | 8 | Stable | View |
| Shakopee | MN | 72.1 | Grade B | 7.7 | Worsening β | View |
| Nashville | TN | 72.1 | Grade B | 8 | Stable | View |
| Murfreesboro | TN | 72.1 | Grade B | 8 | Stable | View |