| Index | Oso | Washington | National |
| Average Test Scores | n/a | 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 |
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| Index | Oso | Washington | National |
| Completed 8th grade | 82.6% | 87.5% | 84.3% |
| Completed high school | 82.6% | 86.6% | 83.0% |
| Completed some college | 53.3% | 67.7% | 59.4% |
| Completed associate degree | 34.4% | 43.3% | 38.5% |
| Completed bachelors | 29.2% | 33.6% | 30.3% |
| Completed masters | 16.9% | 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 Oso. Using the proficiency score averages, the average test scores for Oso, WA schools is n/a. The average student to teacher ratio is n/a. In Oso, WA, an average of 82.6% of students have completed 8th grade and an average of 82.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Arlington, WA | 19,947 | 54% | 11.7% |
| Darrington, WA | 1,194 | 50% | 3.6% |
| Granite Falls, WA | 3,961 | 36% | 24.7% |
| Oso, WA | 241 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Tipton, KS | 241 | 70% | 45.8% |
| Oak Ridge, MO | 241 | 35% | 28.1% |
| Oakdale, TN | 241 | 21% | 57.3% |
| Sunbury, NC | 241 | 25% | 49.0% |
| Bassfield, MS | 241 | 30% | 38.5% |
| Oso, WA | 241 | n/a |
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