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Worst Air Quality ZIP Codes in Oregon
Top 50 worst air quality zip codes in america in Oregon. ZIP-level data from EPA Air Quality Index.
Top 50
| # | ZIP Code | City / Suburb | Median AQI |
|---|---|---|---|
| 1 | 97817 | Greenhorn | 49 |
| 2 | 97820 | Canyon City | 49 |
| 3 | 97825 | Dayville | 49 |
| 4 | 97845 | John Day | 49 |
| 5 | 97848 | — | 49 |
| 6 | 97856 | Long Creek | 49 |
| 7 | 97864 | Monument | 49 |
| 8 | 97865 | Mount Vernon | 49 |
| 9 | 97869 | Prairie City | 49 |
| 10 | 97873 | Seneca | 49 |
| 11 | 97877 | Sumpter | 49 |
| 12 | 97710 | — | 46 |
| 13 | 97720 | Crane | 46 |
| 14 | 97721 | — | 46 |
| 15 | 97722 | — | 46 |
| 16 | 97732 | Crane | 46 |
| 17 | 97736 | — | 46 |
| 18 | 97738 | Hines | 46 |
| 19 | 97758 | — | 46 |
| 20 | 97904 | — | 46 |
| 21 | 97401 | Eugene | 44 |
| 22 | 97402 | Eugene | 44 |
| 23 | 97403 | Eugene | 44 |
| 24 | 97404 | Santa Clara | 44 |
| 25 | 97405 | Eugene | 44 |
| 26 | 97408 | Eugene | 44 |
| 27 | 97412 | — | 44 |
| 28 | 97413 | — | 44 |
| 29 | 97419 | Cheshire | 44 |
| 30 | 97424 | Cottage Grove | 44 |
| 31 | 97426 | Creswell | 44 |
| 32 | 97430 | — | 44 |
| 33 | 97431 | Dexter | 44 |
| 34 | 97434 | — | 44 |
| 35 | 97437 | Elmira | 44 |
| 36 | 97438 | Jasper | 44 |
| 37 | 97439 | Florence | 44 |
| 38 | 97448 | Junction City | 44 |
| 39 | 97451 | — | 44 |
| 40 | 97452 | Lowell | 44 |
| 41 | 97453 | Mapleton | 44 |
| 42 | 97454 | Marcola | 44 |
| 43 | 97455 | Jasper | 44 |
| 44 | 97461 | — | 44 |
| 45 | 97463 | Oakridge | 44 |
| 46 | 97477 | Springfield | 44 |
| 47 | 97478 | Springfield | 44 |
| 48 | 97480 | — | 44 |
| 49 | 97487 | Veneta | 44 |
| 50 | 97488 | — | 44 |
Methodology
This ranking is based on EPA Air Quality Index data, scoped to Oregon ZIP codes. Up to 50 ZIP codes are listed, ordered by median aqi. Data is refreshed periodically. See our methodology page for full details on data sources and update frequency.