| Index | Grays River | 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 | Grays River | Washington | National |
| Completed 8th grade | 88.1% | 87.5% | 84.3% |
| Completed high school | 88.1% | 86.6% | 83.0% |
| Completed some college | 47.5% | 67.7% | 59.4% |
| Completed associate degree | 24.6% | 43.3% | 38.5% |
| Completed bachelors | 14.1% | 33.6% | 30.3% |
| Completed masters | 4.8% | 12.3% | 11.5% |
| Completed professional degree | 1.4% | 3.6% | 3.3% |
| Completed doctorate | 1.4% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Grays River. Using the proficiency score averages, the average test scores for Grays River, WA schools is n/a. The average student to teacher ratio is n/a. In Grays River, WA, an average of 88.1% of students have completed 8th grade and an average of 88.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Naselle, WA | 585 | 60% | 24.0% |
| Pe Ell, WA | 639 | 55% | 13.5% |
| Cathlamet, WA | 605 | 53% | 9.9% |
| Astoria, OR | 9,929 | 41% | 14.2% |
| Grays River, WA | 309 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Clifton, VA | 309 | 89% | 84.7% |
| Bancroft, ID | 309 | 50% | 4.2% |
| Selfridge, ND | 309 | 23% | 53.1% |
| Amazonia, MO | 310 | 45% | 6.3% |
| Goodrich, TX | 310 | 45% | 6.6% |
| Grays River, WA | 309 | n/a |
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