| Index | Chehalis | Washington | National |
| Average Test Scores | 55% | 54% | 48% |
| Student/Teacher ratio | 18:1 | 20:1 | 16:1 |
| Total public schools | 7 | 1,991 | 79,221 |
| Total private schools | 2 | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Chehalis | Washington | National |
| Completed 8th grade | 83.0% | 87.5% | 84.3% |
| Completed high school | 82.3% | 86.6% | 83.0% |
| Completed some college | 63.2% | 67.7% | 59.4% |
| Completed associate degree | 31.1% | 43.3% | 38.5% |
| Completed bachelors | 21.4% | 33.6% | 30.3% |
| Completed masters | 7.8% | 12.3% | 11.5% |
| Completed professional degree | 3.5% | 3.6% | 3.3% |
| Completed doctorate | 1.0% | 1.5% | 1.3% |
There are a total of 7 public schools, 2 private schools and n/a post-secondary schools in Chehalis. Using the proficiency score averages, the average test scores for Chehalis, WA schools is 55%. The average student to teacher ratio is 18:1. In Chehalis, WA, an average of 83.0% of students have completed 8th grade and an average of 82.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Napavine, WA | 1,571 | 57% | 19.3% |
| Rochester, WA | 4,854 | 54% | 12.2% |
| Tenino, WA | 1,744 | 50% | 4.2% |
| Centralia, WA | 17,473 | 49% | 1.7% |
| Onalaska, WA | 431 | 46% | 5.2% |
| Chehalis, WA | 7,607 | 55% | 14.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Emerson, NJ | 7,606 | 60% | 24.0% |
| Hales Corners, WI | 7,609 | 58% | 21.4% |
| Oceano, CA | 7,601 | 38% | 20.8% |
| Ojai, CA | 7,613 | 35% | 27.5% |
| Pulaski, TN | 7,614 | 30% | 37.5% |
| Chehalis, WA | 7,607 | 55% | 14.3% |
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