| Index | Greenwater | 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 | Greenwater | Washington | National |
| Completed 8th grade | 100.0% | 87.5% | 84.3% |
| Completed high school | 100.0% | 86.6% | 83.0% |
| Completed some college | 100.0% | 67.7% | 59.4% |
| Completed associate degree | 53.8% | 43.3% | 38.5% |
| Completed bachelors | 25.0% | 33.6% | 30.3% |
| Completed masters | 0.0% | 12.3% | 11.5% |
| Completed professional degree | 0.0% | 3.6% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Greenwater. Using the proficiency score averages, the average test scores for Greenwater, WA schools is n/a. The average student to teacher ratio is n/a. In Greenwater, WA, an average of 100.0% of students have completed 8th grade and an average of 100.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Greenwater, WA | 77 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Altoona, FL | 77 | 52% | 8.3% |
| Washington, VA | 77 | 84% | 74.5% |
| Forestburg, SD | 78 | 57% | 18.1% |
| Pinetown, NC | 76 | 35% | 27.6% |
| Clifton Hill, MO | 76 | 37% | 22.9% |
| Greenwater, WA | 77 | n/a |
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