| Index | Grand Coulee | 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 |
| Index | Grand Coulee | Washington | National |
| Completed 8th grade | 86.0% | 87.5% | 84.3% |
| Completed high school | 82.6% | 86.6% | 83.0% |
| Completed some college | 54.8% | 67.7% | 59.4% |
| Completed associate degree | 28.6% | 43.3% | 38.5% |
| Completed bachelors | 13.7% | 33.6% | 30.3% |
| Completed masters | 3.7% | 12.3% | 11.5% |
| Completed professional degree | 1.3% | 3.6% | 3.3% |
| Completed doctorate | 0.9% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Grand Coulee. Using the proficiency score averages, the average test scores for Grand Coulee, WA schools is n/a. The average student to teacher ratio is n/a. In Grand Coulee, WA, an average of 86.0% of students have completed 8th grade and an average of 82.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Wilbur, WA | 767 | 55% | 14.1% |
| Coulee Dam, WA | 1,355 | 39% | 19.1% |
| Keller, WA | 204 | 30% | 37.5% |
| Grand Coulee, WA | 1,257 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Prosperity, SC | 1,257 | 58% | 20.5% |
| Mansfield, MO | 1,257 | 56% | 16.3% |
| Union Springs, NY | 1,257 | 70% | 45.5% |
| Edgerton, MN | 1,257 | 51% | 5.7% |
| Wendover, UT | 1,258 | 26% | 46.4% |
| Grand Coulee, WA | 1,257 | n/a |
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