| Index | Williams Bay | Wisconsin | National |
| Average Test Scores | 46% | 41% | 48% |
| Student/Teacher ratio | 14:1 | 14:1 | 16:1 |
| Total public schools | 3 | 1,869 | 79,221 |
| Total private schools | 1 | 872 | 24,874 |
| Total post-secondary schools | n/a | 114 | 7,963 |
| Index | Williams Bay | Wisconsin | National |
| Completed 8th grade | 93.7% | 89.0% | 84.3% |
| Completed high school | 93.7% | 87.8% | 83.0% |
| Completed some college | 73.5% | 59.7% | 59.4% |
| Completed associate degree | 56.6% | 38.7% | 38.5% |
| Completed bachelors | 48.1% | 28.4% | 30.3% |
| Completed masters | 26.2% | 9.6% | 11.5% |
| Completed professional degree | 8.4% | 2.7% | 3.3% |
| Completed doctorate | 3.3% | 1.1% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Williams Bay. Using the proficiency score averages, the average test scores for Williams Bay, WI schools is 46%. The average student to teacher ratio is 14:1. In Williams Bay, WI, an average of 93.7% of students have completed 8th grade and an average of 93.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Richmond, IL | 2,106 | 53% | 9.4% |
| Fontana-on-Geneva Lake, WI | 1,518 | 52% | 8.3% |
| Burlington, WI | 10,911 | 51% | 6.6% |
| Lake Geneva, WI | 7,872 | 51% | 6.5% |
| Genoa City, WI | 2,989 | 46% | 5.2% |
| Williams Bay, WI | 2,607 | 46% | 5.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Summerset, SD | 2,607 | 57% | 17.7% |
| Lincoln, ME | 2,606 | 33% | 32.3% |
| Iona, ID | 2,608 | 53% | 10.4% |
| Midland, PA | 2,608 | 56% | 16.1% |
| Gap, PA | 2,609 | 55% | 13.5% |
| Williams Bay, WI | 2,607 | 46% | 5.2% |
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