Oregon public school districts ranked by the lowest enrollment-weighted state-assessment proficiency. Counties need at least 3 schools and 1,000 students to qualify.
| # | County | State | % Proficient |
|---|---|---|---|
| 1 | Jefferson County | OR | 20.6% |
| 2 | Morrow County | OR | 24.1% |
| 3 | Marion County | OR | 24.2% |
| 4 | Wasco County | OR | 25.9% |
| 5 | Polk County | OR | 28.1% |
| 6 | Curry County | OR | 28.4% |
| 7 | Columbia County | OR | 29.8% |
| 8 | Clatsop County | OR | 30.0% |
| 9 | Linn County | OR | 30.7% |
| 10 | Douglas County | OR | 30.9% |
| 11 | Umatilla County | OR | 31.0% |
| 12 | Klamath County | OR | 32.7% |
| 13 | Jackson County | OR | 32.9% |
| 14 | Coos County | OR | 33.0% |
| 15 | Lane County | OR | 33.8% |
| 16 | Malheur County | OR | 34.1% |
| 17 | Tillamook County | OR | 34.2% |
| 18 | Multnomah County | OR | 35.9% |
| 19 | Yamhill County | OR | 36.3% |
| 20 | Josephine County | OR | 36.4% |
| 21 | Union County | OR | 36.5% |
| 22 | Deschutes County | OR | 37.4% |
| 23 | Hood River County | OR | 37.4% |
| 24 | Washington County | OR | 38.7% |
| 25 | Clackamas County | OR | 39.1% |
| 26 | Benton County | OR | 45.3% |