| Index | Coulee Dam | Washington | National |
| Average Test Scores | 39% | 54% | 48% |
| Student/Teacher ratio | 17:1 | 20:1 | 16:1 |
| Total public schools | 2 | 1,991 | 79,221 |
| Total private schools | n/a | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Coulee Dam | Washington | National |
| Completed 8th grade | 89.5% | 87.5% | 84.3% |
| Completed high school | 88.1% | 86.6% | 83.0% |
| Completed some college | 65.5% | 67.7% | 59.4% |
| Completed associate degree | 33.9% | 43.3% | 38.5% |
| Completed bachelors | 18.5% | 33.6% | 30.3% |
| Completed masters | 7.8% | 12.3% | 11.5% |
| Completed professional degree | 2.0% | 3.6% | 3.3% |
| Completed doctorate | 0.7% | 1.5% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Coulee Dam. Using the proficiency score averages, the average test scores for Coulee Dam, WA schools is 39%. The average student to teacher ratio is 17:1. In Coulee Dam, WA, an average of 89.5% of students have completed 8th grade and an average of 88.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Wilbur, WA | 767 | 55% | 14.1% |
| Keller, WA | 204 | 30% | 37.5% |
| Nespelem, WA | 215 | 10% | 79.2% |
| Coulee Dam, WA | 1,355 | 39% | 19.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Jonesville, VA | 1,355 | 79% | 64.2% |
| Denton, NC | 1,355 | 39% | 18.4% |
| Capitan, NM | 1,356 | 36% | 24.7% |
| Cairo, NY | 1,356 | 53% | 9.4% |
| Colwich, KS | 1,354 | 52% | 8.9% |
| Coulee Dam, WA | 1,355 | 39% | 19.1% |
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