| Index | Williamsville | Missouri | National |
| Average Test Scores | 50% | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Williamsville | Missouri | National |
| Completed 8th grade | 67.0% | 86.0% | 84.3% |
| Completed high school | 57.0% | 84.2% | 83.0% |
| Completed some college | 30.7% | 57.7% | 59.4% |
| Completed associate degree | 9.3% | 35.2% | 38.5% |
| Completed bachelors | 3.3% | 27.6% | 30.3% |
| Completed masters | 0.7% | 10.4% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Williamsville. Using the proficiency score averages, the average test scores for Williamsville, MO schools is 50%. The average student to teacher ratio is n/a. In Williamsville, MO, an average of 67.0% of students have completed 8th grade and an average of 57.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Poplar Bluff, MO | 16,979 | 56% | 16.3% |
| Piedmont, MO | 3,550 | 38% | 20.8% |
| Ellsinore, MO | 654 | 38% | 20.8% |
| Greenville, MO | 519 | 37% | 22.9% |
| Williamsville, MO | 336 | 50% | 4.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Imbler, OR | 336 | 60% | 24.0% |
| Windthorst, TX | 336 | 64% | 33.0% |
| Delight, AR | 336 | 55% | 14.6% |
| Rose, OK | 336 | 25% | 49.0% |
| Mill Creek, PA | 337 | 50% | 4.2% |
| Williamsville, MO | 336 | 50% | 4.2% |
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