| Index | Sunday Lake | 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 | Sunday Lake | Washington | National |
| Completed 8th grade | 91.6% | 87.5% | 84.3% |
| Completed high school | 91.6% | 86.6% | 83.0% |
| Completed some college | 71.0% | 67.7% | 59.4% |
| Completed associate degree | 32.7% | 43.3% | 38.5% |
| Completed bachelors | 19.5% | 33.6% | 30.3% |
| Completed masters | 2.4% | 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 Sunday Lake. Using the proficiency score averages, the average test scores for Sunday Lake, WA schools is n/a. The average student to teacher ratio is n/a. In Sunday Lake, WA, an average of 91.6% of students have completed 8th grade and an average of 91.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Camano, WA | 17,073 | 61% | 26.6% |
| Stanwood, WA | 7,228 | 59% | 23.4% |
| Langley, WA | 1,201 | 56% | 17.2% |
| Arlington, WA | 19,947 | 54% | 11.7% |
| Mount Vernon, WA | 35,502 | 49% | 1.1% |
| Sunday Lake, WA | 947 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Hays, MT | 947 | 31% | 35.8% |
| Waverly, MO | 947 | 40% | 17.7% |
| Newark Valley, NY | 947 | 47% | 3.1% |
| Decaturville, TN | 947 | 46% | 4.7% |
| Hyndman, PA | 947 | 37% | 22.9% |
| Sunday Lake, WA | 947 | n/a |
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