| Index | Montesano | Washington | National |
| Average Test Scores | 59% | 54% | 48% |
| Student/Teacher ratio | 20:1 | 20:1 | 16:1 |
| Total public schools | 3 | 1,991 | 79,221 |
| Total private schools | 1 | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Montesano | Washington | National |
| Completed 8th grade | 90.6% | 87.5% | 84.3% |
| Completed high school | 89.2% | 86.6% | 83.0% |
| Completed some college | 70.1% | 67.7% | 59.4% |
| Completed associate degree | 41.3% | 43.3% | 38.5% |
| Completed bachelors | 27.0% | 33.6% | 30.3% |
| Completed masters | 8.5% | 12.3% | 11.5% |
| Completed professional degree | 0.6% | 3.6% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Montesano. Using the proficiency score averages, the average test scores for Montesano, WA schools is 59%. The average student to teacher ratio is 20:1. In Montesano, WA, an average of 90.6% of students have completed 8th grade and an average of 89.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Satsop, WA | 638 | 60% | 25.0% |
| Cosmopolis, WA | 1,968 | 54% | 11.5% |
| Elma, WA | 3,299 | 46% | 4.6% |
| Aberdeen, WA | 16,571 | 37% | 23.1% |
| Hoquiam, WA | 8,570 | 35% | 26.3% |
| Montesano, WA | 4,002 | 59% | 22.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Eldorado, IL | 4,000 | 24% | 49.7% |
| Pearl River, MS | 4,005 | 15% | 68.1% |
| Akron, PA | 4,006 | 65% | 34.4% |
| Fredericktown, MO | 4,006 | 42% | 12.5% |
| Centerville, MN | 4,006 | 82% | 70.8% |
| Montesano, WA | 4,002 | 59% | 22.9% |
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