| Index | Oak Harbor | Washington | National |
| Average Test Scores | 57% | 54% | 48% |
| Student/Teacher ratio | 26:1 | 20:1 | 16:1 |
| Total public schools | 13 | 1,991 | 79,221 |
| Total private schools | 3 | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Oak Harbor | Washington | National |
| Completed 8th grade | 89.9% | 87.5% | 84.3% |
| Completed high school | 89.1% | 86.6% | 83.0% |
| Completed some college | 68.5% | 67.7% | 59.4% |
| Completed associate degree | 36.3% | 43.3% | 38.5% |
| Completed bachelors | 21.4% | 33.6% | 30.3% |
| Completed masters | 5.4% | 12.3% | 11.5% |
| Completed professional degree | 0.8% | 3.6% | 3.3% |
| Completed doctorate | 0.3% | 1.5% | 1.3% |
There are a total of 13 public schools, 3 private schools and n/a post-secondary schools in Oak Harbor. Using the proficiency score averages, the average test scores for Oak Harbor, WA schools is 57%. The average student to teacher ratio is 26:1. In Oak Harbor, WA, an average of 89.9% of students have completed 8th grade and an average of 89.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Anacortes, WA | 17,231 | 69% | 44.4% |
| Coupeville, WA | 1,850 | 63% | 30.2% |
| Camano, WA | 17,073 | 61% | 26.6% |
| Stanwood, WA | 7,228 | 59% | 23.4% |
| Port Townsend, WA | 9,710 | 52% | 7.3% |
| Oak Harbor, WA | 23,358 | 57% | 17.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Lisle, IL | 23,363 | 56% | 16.7% |
| Maywood, IL | 23,351 | 15% | 69.3% |
| Greenwood, SC | 23,351 | 37% | 23.4% |
| North Augusta, SC | 23,370 | 55% | 14.8% |
| Tumwater, WA | 23,390 | 60% | 24.7% |
| Oak Harbor, WA | 23,358 | 57% | 17.9% |
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