Local Data Search
A total of 36 results found. Show Results on Map.
| Rank | Air Quality Index ▼ | County / Population |
| 1. | 44.0 | Harney, OR / 7,253 |
| 2. | 43.9 | Malheur, OR / 30,740 |
| 3. | 42.1 | Union, OR / 25,736 |
| 4. | 41.2 | Baker, OR / 16,049 |
| 5. | 41.0 | Wallowa, OR / 6,893 |
| 6. | 39.8 | Grant, OR / 7,325 |
| 7. | 39.7 | Umatilla, OR / 76,645 |
| 8. | 39.4 | Klamath, OR / 65,985 |
| 9. | 39.1 | Josephine, OR / 83,021 |
| 9. | 39.1 | Lake, OR / 7,854 |
| 9. | 39.1 | Curry, OR / 22,341 |
| 12. | 38.9 | Morrow, OR / 11,217 |
| 12. | 38.9 | Jackson, OR / 206,583 |
| 14. | 38.6 | Gilliam, OR / 1,926 |
| 15. | 38.4 | Crook, OR / 20,798 |
| 16. | 38.2 | Wheeler, OR / 1,357 |
| 17. | 37.7 | Jefferson, OR / 21,830 |
| 18. | 37.1 | Sherman, OR / 1,790 |
| 19. | 37.0 | Wasco, OR / 25,387 |
| 20. | 36.7 | Marion, OR / 320,448 |
| 21. | 36.4 | Coos, OR / 62,678 |
| 22. | 36.2 | Deschutes, OR / 163,141 |
| 22. | 36.2 | Polk, OR / 76,464 |
| 24. | 35.9 | Douglas, OR / 107,156 |
| 24. | 35.9 | Lane, OR / 354,764 |
| 26. | 35.7 | Hood River, OR / 22,620 |
| 27. | 35.1 | Benton, OR / 86,034 |
| 27. | 35.1 | Lincoln, OR / 46,138 |
| 27. | 35.1 | Linn, OR / 118,270 |
| 30. | 33.7 | Clackamas, OR / 384,697 |
| 31. | 33.5 | Yamhill, OR / 100,486 |
| 32. | 33.3 | Multnomah, OR / 757,371 |
| 33. | 32.7 | Clatsop, OR / 37,236 |
| 33. | 32.7 | Columbia, OR / 49,325 |
| 35. | 32.6 | Washington, OR / 547,451 |
| 35. | 32.6 | Tillamook, OR / 25,334 |
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.