| Index | SeaTac | Washington | National |
| Average Test Scores | 36% | 54% | 48% |
| Student/Teacher ratio | 21:1 | 20:1 | 16:1 |
| Total public schools | 6 | 1,991 | 79,221 |
| Total private schools | 2 | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | SeaTac | Washington | National |
| Completed 8th grade | 80.1% | 87.5% | 84.3% |
| Completed high school | 79.4% | 86.6% | 83.0% |
| Completed some college | 53.6% | 67.7% | 59.4% |
| Completed associate degree | 28.5% | 43.3% | 38.5% |
| Completed bachelors | 19.9% | 33.6% | 30.3% |
| Completed masters | 5.1% | 12.3% | 11.5% |
| Completed professional degree | 1.0% | 3.6% | 3.3% |
| Completed doctorate | 0.2% | 1.5% | 1.3% |
There are a total of 6 public schools, 2 private schools and n/a post-secondary schools in SeaTac. Using the proficiency score averages, the average test scores for SeaTac, WA schools is 36%. The average student to teacher ratio is 21:1. In SeaTac, WA, an average of 80.1% of students have completed 8th grade and an average of 79.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Medina, WA | 3,360 | 91% | 88.5% |
| Sammamish, WA | 67,314 | 86% | 78.2% |
| Mercer Island, WA | 26,374 | 85% | 77.8% |
| Bainbridge Island, WA | 25,850 | 81% | 67.9% |
| Lake Tapps, WA | 12,497 | 78% | 62.8% |
| SeaTac, WA | 30,186 | 36% | 26.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Maryville, TN | 30,172 | 42% | 12.2% |
| Raytown, MO | 30,162 | 33% | 30.8% |
| O'Fallon, IL | 30,151 | 48% | 0.1% |
| Southgate, MI | 30,149 | 30% | 36.9% |
| Oak Park, MI | 30,129 | 21% | 57.3% |
| SeaTac, WA | 30,186 | 36% | 26.0% |
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