| Index | Mossyrock | Washington | National |
| Average Test Scores | 57% | 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 | Mossyrock | Washington | National |
| Completed 8th grade | 77.1% | 87.5% | 84.3% |
| Completed high school | 74.2% | 86.6% | 83.0% |
| Completed some college | 40.6% | 67.7% | 59.4% |
| Completed associate degree | 15.8% | 43.3% | 38.5% |
| Completed bachelors | 4.4% | 33.6% | 30.3% |
| Completed masters | 1.5% | 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 Mossyrock. Using the proficiency score averages, the average test scores for Mossyrock, WA schools is 57%. The average student to teacher ratio is n/a. In Mossyrock, WA, an average of 77.1% of students have completed 8th grade and an average of 74.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Morton, WA | 1,111 | 53% | 10.9% |
| Onalaska, WA | 431 | 46% | 5.2% |
| Mossyrock, WA | 666 | 57% | 18.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Mount Victory, OH | 666 | 58% | 21.4% |
| Pilot Grove, MO | 666 | 47% | 3.1% |
| Western Grove, AR | 666 | 37% | 22.9% |
| Paris, ID | 667 | 52% | 8.3% |
| Culbertson, MT | 665 | 26% | 46.5% |
| Mossyrock, WA | 666 | 57% | 18.8% |
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