| Index | Onalaska | Washington | National |
| Average Test Scores | 46% | 54% | 48% |
| Student/Teacher ratio | n/a | 20:1 | 16:1 |
| Total public schools | n/a | 1,991 | 79,221 |
| Total private schools | n/a | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Onalaska | Washington | National |
| Completed 8th grade | 86.9% | 87.5% | 84.3% |
| Completed high school | 86.9% | 86.6% | 83.0% |
| Completed some college | 62.2% | 67.7% | 59.4% |
| Completed associate degree | 31.1% | 43.3% | 38.5% |
| Completed bachelors | 11.1% | 33.6% | 30.3% |
| Completed masters | 9.2% | 12.3% | 11.5% |
| Completed professional degree | 0.0% | 3.6% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Onalaska. Using the proficiency score averages, the average test scores for Onalaska, WA schools is 46%. The average student to teacher ratio is n/a. In Onalaska, WA, an average of 86.9% of students have completed 8th grade and an average of 86.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Napavine, WA | 1,571 | 57% | 19.3% |
| Toledo, WA | 532 | 57% | 19.0% |
| Mossyrock, WA | 666 | 57% | 18.8% |
| Chehalis, WA | 7,607 | 55% | 14.3% |
| Centralia, WA | 17,473 | 49% | 1.7% |
| Onalaska, WA | 431 | 46% | 5.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Natoma, KS | 431 | 30% | 37.5% |
| Buxton, ND | 431 | 69% | 42.7% |
| Chamois, MO | 431 | 45% | 6.3% |
| Romulus, NY | 431 | 45% | 6.3% |
| Fruithurst, AL | 431 | 52% | 8.3% |
| Onalaska, WA | 431 | 46% | 5.2% |
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