| 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 |
| 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 | 2,238 | 83% | 72.6% |
| East Aurora, NY | 6,172 | 73% | 51.0% |
| Akron, NY | 2,860 | 70% | 45.8% |
| Clarence Center, NY | 3,211 | 70% | 44.8% |
| Orchard Park, NY | 3,131 | 67% | 40.5% |
| Williamsville, NY | 5,194 | 74% | 54.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Ward, AR | 5,195 | 63% | 31.3% |
| Elmsford, NY | 5,197 | 49% | 1.6% |
| Marshfield, MA | 5,190 | 74% | 54.3% |
| Bisbee, AZ | 5,199 | 28% | 41.9% |
| Springfield, MI | 5,188 | 22% | 55.2% |
| Williamsville, NY | 5,194 | 74% | 54.5% |
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