Local Data Search
A total of 39 results found. Show Results on Map.
| Rank | Air Quality Index ▼ | County / Population |
| 1. | 41.8 | Pend Oreille, WA / 12,965 |
| 2. | 41.6 | Asotin, WA / 21,955 |
| 3. | 41.5 | Walla Walla, WA / 59,476 |
| 4. | 41.4 | Stevens, WA / 43,541 |
| 5. | 41.3 | Columbia, WA / 4,031 |
| 6. | 40.8 | Lincoln, WA / 10,409 |
| 6. | 40.8 | Whitman, WA / 46,003 |
| 8. | 40.7 | Spokane, WA / 476,950 |
| 9. | 40.6 | Garfield, WA / 2,240 |
| 10. | 40.5 | Ferry, WA / 7,657 |
| 11. | 40.4 | Adams, WA / 18,951 |
| 12. | 40.3 | Grant, WA / 91,458 |
| 13. | 40.2 | Franklin, WA / 84,508 |
| 14. | 38.5 | Benton, WA / 182,053 |
| 15. | 38.2 | Klickitat, WA / 20,668 |
| 16. | 37.5 | Kittitas, WA / 41,705 |
| 17. | 36.5 | Yakima, WA / 246,402 |
| 18. | 36.1 | Pierce, WA / 812,689 |
| 19. | 34.9 | Thurston, WA / 259,330 |
| 20. | 34.8 | Pacific, WA / 20,665 |
| 21. | 34.4 | Okanogan, WA / 41,241 |
| 22. | 34.3 | Grays Harbor, WA / 71,734 |
| 23. | 34.2 | Douglas, WA / 39,183 |
| 24. | 34.0 | Mason, WA / 60,728 |
| 25. | 33.7 | Lewis, WA / 75,382 |
| 26. | 33.5 | Skamania, WA / 11,194 |
| 27. | 33.5 | Clark, WA / 438,272 |
| 27. | 33.5 | Chelan, WA / 73,664 |
| 29. | 32.4 | King, WA / 2,008,997 |
| 30. | 32.2 | Wahkiakum, WA / 4,016 |
| 30. | 32.2 | Snohomish, WA / 735,351 |
| 30. | 32.2 | Cowlitz, WA / 102,072 |
| 33. | 30.7 | Jefferson, WA / 29,978 |
| 34. | 30.4 | Island, WA / 78,951 |
| 35. | 29.7 | Clallam, WA / 72,024 |
| 36. | 29.5 | Kitsap, WA / 253,614 |
| 37. | 29.2 | Whatcom, WA / 204,855 |
| 38. | 29.0 | San Juan, WA / 15,847 |
| 39. | 28.9 | Skagit, WA / 118,364 |
Please note that we only rank locations with 'Air Quality Index' data. The rank above might not be a complete list. Locations without 'Air Quality Index' data are not listed.