| Index | Fairfax | Virginia | National |
| Average Test Scores | 82% | 79% | 48% |
| Student/Teacher ratio | 14:1 | 13:1 | 16:1 |
| Total public schools | 27 | 1,596 | 79,221 |
| Total private schools | 13 | 553 | 24,874 |
| Total post-secondary schools | 2 | 199 | 7,963 |
| Index | Fairfax | Virginia | National |
| Completed 8th grade | 90.3% | 85.9% | 84.3% |
| Completed high school | 90.0% | 84.7% | 83.0% |
| Completed some college | 75.7% | 64.1% | 59.4% |
| Completed associate degree | 59.0% | 44.2% | 38.5% |
| Completed bachelors | 54.7% | 36.9% | 30.3% |
| Completed masters | 24.1% | 15.7% | 11.5% |
| Completed professional degree | 6.4% | 4.2% | 3.3% |
| Completed doctorate | 3.1% | 1.7% | 1.3% |
There are a total of 27 public schools, 13 private schools and 2 post-secondary schools in Fairfax. Using the proficiency score averages, the average test scores for Fairfax, VA schools is 82%. The average student to teacher ratio is 14:1. In Fairfax, VA, an average of 90.3% of students have completed 8th grade and an average of 90.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| McLean, VA | 48,566 | 95% | 97.1% |
| Great Falls, VA | 14,793 | 94% | 94.8% |
| Oakton, VA | 36,468 | 92% | 90.6% |
| Burke, VA | 44,077 | 90% | 86.7% |
| Chantilly, VA | 23,820 | 89% | 85.7% |
| Fairfax, VA | 23,312 | 82% | 71.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Fort Hood, TX | 23,302 | 57% | 19.5% |
| Columbus, NE | 23,291 | 51% | 6.6% |
| Rolling Meadows, IL | 23,288 | 42% | 13.1% |
| Loves Park, IL | 23,274 | 21% | 56.3% |
| Greenwood, SC | 23,351 | 37% | 23.4% |
| Fairfax, VA | 23,312 | 82% | 71.8% |
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