| Index | Williamsville | New York | National |
| Average Test Scores | 74% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 12 | 4,060 | 79,221 |
| Total private schools | 4 | 1,092 | 24,874 |
| Total post-secondary schools | 3 | 483 | 7,963 |


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| Index | Williamsville | New York | National |
| Completed 8th grade | 95.0% | 83.5% | 84.3% |
| Completed high school | 94.7% | 82.1% | 83.0% |
| Completed some college | 84.1% | 59.5% | 59.4% |
| Completed associate degree | 64.9% | 43.4% | 38.5% |
| Completed bachelors | 58.0% | 34.7% | 30.3% |
| Completed masters | 28.9% | 15.1% | 11.5% |
| Completed professional degree | 7.4% | 4.2% | 3.3% |
| Completed doctorate | 3.2% | 1.5% | 1.3% |
There are a total of 12 public schools, 4 private schools and 3 post-secondary schools in Williamsville. Using the proficiency score averages, the average test scores for Williamsville, NY schools is 74%. The average student to teacher ratio is n/a. In Williamsville, NY, an average of 95.0% of students have completed 8th grade and an average of 94.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Clarence, NY | 2,283 | 83% | 72.6% |
| East Aurora, NY | 6,335 | 73% | 51.0% |
| Akron, NY | 2,934 | 70% | 45.8% |
| Clarence Center, NY | 3,300 | 70% | 44.8% |
| Orchard Park, NY | 3,242 | 67% | 40.5% |
| Williamsville, NY | 5,373 | 74% | 54.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Eaton Rapids, MI | 5,371 | 44% | 8.2% |
| DeWitt, IA | 5,371 | 76% | 57.8% |
| Bowling Green, MO | 5,376 | 44% | 9.4% |
| Woodstock, VA | 5,370 | 73% | 52.1% |
| Elverta, CA | 5,366 | 20% | 58.7% |
| Williamsville, NY | 5,373 | 74% | 54.5% |