| Index | Sullivan | Wisconsin | National |
| Average Test Scores | 72% | 41% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,869 | 79,221 |
| Total private schools | n/a | 872 | 24,874 |
| Total post-secondary schools | n/a | 114 | 7,963 |
| Index | Sullivan | Wisconsin | National |
| Completed 8th grade | 85.1% | 89.0% | 84.3% |
| Completed high school | 84.1% | 87.8% | 83.0% |
| Completed some college | 54.1% | 59.7% | 59.4% |
| Completed associate degree | 27.1% | 38.7% | 38.5% |
| Completed bachelors | 18.2% | 28.4% | 30.3% |
| Completed masters | 4.9% | 9.6% | 11.5% |
| Completed professional degree | 0.8% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Sullivan. Using the proficiency score averages, the average test scores for Sullivan, WI schools is 72%. The average student to teacher ratio is n/a. In Sullivan, WI, an average of 85.1% of students have completed 8th grade and an average of 84.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Merton, WI | 3,721 | 72% | 49.0% |
| North Prairie, WI | 2,542 | 72% | 49.0% |
| Hartland, WI | 9,317 | 69% | 44.0% |
| Delafield, WI | 7,541 | 63% | 31.3% |
| Eagle, WI | 2,138 | 60% | 24.5% |
| Sullivan, WI | 710 | 72% | 50.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Kirby, AR | 710 | 40% | 17.7% |
| Newland, NC | 710 | 49% | 1.9% |
| Chiloquin, OR | 710 | 32% | 32.6% |
| Bardwell, KY | 710 | 44% | 8.7% |
| Welling, OK | 709 | 32% | 33.3% |
| Sullivan, WI | 710 | 72% | 50.0% |
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