Washington Air Quality by City
Washington has 17 cities with an air-quality page, from Seattle (3,642,006 people) on down. Each page leads with the live AQI, the main pollutant driving it, and a go/no-go for outdoor exercise on the EPA scale.
Cities in Washington
| City | Typical AQI (county median, 2025) | Population |
|---|---|---|
| Seattle | 43 Good | 3,642,006 |
| Spokane | 43 Good | 462,286 |
| Kennewick | 36 Good | 259,487 |
| Bremerton | 22 Good | 224,760 |
| Tacoma | 44 Good | 222,758 |
| Olympia | 27 Good | 217,647 |
| Vancouver | 33 Good | 195,300 |
| Marysville | 41 Good | 166,250 |
| Bellevue | 43 Good | 151,847 |
| Yakima | 41 Good | 136,518 |
| Kent | 43 Good | 135,603 |
| Bellingham | 31 Good | 135,591 |
| Richland | 36 Good | 62,753 |
| Issaquah | 43 Good | 39,591 |
| Touchet | 28 Good | 558 |
| Endicott | 23 Good | 425 |
| Green Bluff | 43 Good | 323 |
Our dataset lists 633 places in Washington; the 17 above have a page. For a smaller town, the nearest city above is the closest match.