Oregon public school districts ranked by the highest county-wide student-to-teacher ratio. Counties need at least 3 schools and 1,000 students to qualify.
| # | County | State | Ratio |
|---|---|---|---|
| 1 | Wheeler County | OR | 36.7:1 |
| 2 | Deschutes County | OR | 20.3:1 |
| 3 | Polk County | OR | 20.2:1 |
| 4 | Crook County | OR | 19.7:1 |
| 5 | Marion County | OR | 19.7:1 |
| 6 | Josephine County | OR | 19.6:1 |
| 7 | Baker County | OR | 19.3:1 |
| 8 | Clackamas County | OR | 19.3:1 |
| 9 | Jackson County | OR | 19.2:1 |
| 10 | Linn County | OR | 18.5:1 |
| 11 | Benton County | OR | 18.2:1 |
| 12 | Harney County | OR | 18.2:1 |
| 13 | Washington County | OR | 18.2:1 |
| 14 | Columbia County | OR | 18.1:1 |
| 15 | Yamhill County | OR | 18.1:1 |
| 16 | Malheur County | OR | 17.9:1 |
| 17 | Klamath County | OR | 17.6:1 |
| 18 | Coos County | OR | 17.5:1 |
| 19 | Lane County | OR | 17.5:1 |
| 20 | Multnomah County | OR | 17.3:1 |
| 21 | Lincoln County | OR | 16.8:1 |
| 22 | Wasco County | OR | 16.8:1 |
| 23 | Curry County | OR | 16.1:1 |
| 24 | Hood River County | OR | 16.1:1 |
| 25 | Umatilla County | OR | 16.1:1 |
| 26 | Jefferson County | OR | 15.6:1 |
| 27 | Lake County | OR | 15.6:1 |
| 28 | Douglas County | OR | 15.5:1 |
| 29 | Union County | OR | 15.0:1 |
| 30 | Grant County | OR | 14.9:1 |
| 31 | Clatsop County | OR | 14.8:1 |
| 32 | Morrow County | OR | 14.5:1 |
| 33 | Tillamook County | OR | 14.0:1 |