| Index | Sudley | Virginia | National |
| Average Test Scores | n/a | 79% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,596 | 79,221 |
| Total private schools | n/a | 553 | 24,874 |
| Total post-secondary schools | n/a | 199 | 7,963 |
| Index | Sudley | Virginia | National |
| Completed 8th grade | 75.9% | 85.9% | 84.3% |
| Completed high school | 75.0% | 84.7% | 83.0% |
| Completed some college | 54.0% | 64.1% | 59.4% |
| Completed associate degree | 32.5% | 44.2% | 38.5% |
| Completed bachelors | 24.6% | 36.9% | 30.3% |
| Completed masters | 9.7% | 15.7% | 11.5% |
| Completed professional degree | 0.7% | 4.2% | 3.3% |
| Completed doctorate | 0.5% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Sudley. Using the proficiency score averages, the average test scores for Sudley, VA schools is n/a. The average student to teacher ratio is n/a. In Sudley, VA, an average of 75.9% of students have completed 8th grade and an average of 75.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Oakton, VA | 36,468 | 92% | 90.6% |
| Haymarket, VA | 1,485 | 90% | 88.2% |
| Burke, VA | 44,077 | 90% | 86.7% |
| Chantilly, VA | 23,820 | 89% | 85.7% |
| Clifton, VA | 309 | 89% | 84.7% |
| Sudley, VA | 18,019 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Bethpage, NY | 18,012 | 72% | 50.9% |
| McAlester, OK | 18,042 | 43% | 10.0% |
| Melville, NY | 17,992 | 53% | 10.4% |
| Sycamore, IL | 17,990 | 41% | 14.4% |
| Oxon Hill, MD | 18,049 | 28% | 42.7% |
| Sudley, VA | 18,019 | n/a |
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