| Index | Marrowstone | 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 | Marrowstone | Washington | National |
| Completed 8th grade | 98.5% | 87.5% | 84.3% |
| Completed high school | 97.4% | 86.6% | 83.0% |
| Completed some college | 84.7% | 67.7% | 59.4% |
| Completed associate degree | 61.2% | 43.3% | 38.5% |
| Completed bachelors | 47.9% | 33.6% | 30.3% |
| Completed masters | 14.6% | 12.3% | 11.5% |
| Completed professional degree | 6.8% | 3.6% | 3.3% |
| Completed doctorate | 5.1% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Marrowstone. Using the proficiency score averages, the average test scores for Marrowstone, WA schools is n/a. The average student to teacher ratio is n/a. In Marrowstone, WA, an average of 98.5% of students have completed 8th grade and an average of 97.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Coupeville, WA | 1,850 | 63% | 30.2% |
| Edmonds, WA | 42,347 | 62% | 28.7% |
| Camano, WA | 17,073 | 61% | 26.6% |
| Langley, WA | 1,201 | 56% | 17.2% |
| Port Townsend, WA | 9,710 | 52% | 7.3% |
| Marrowstone, WA | 943 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Cannon Ball, ND | 943 | 15% | 68.8% |
| Eagleville, TN | 943 | 50% | 3.1% |
| Dexter, GA | 943 | 51% | 5.2% |
| Brownsville, KY | 943 | 54% | 11.5% |
| Dawson, TX | 943 | 37% | 22.9% |
| Marrowstone, WA | 943 | n/a |
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