| Index | Thornton | Wisconsin | National |
| Average Test Scores | n/a | 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 | Thornton | Wisconsin | National |
| Completed 8th grade | 89.6% | 89.0% | 84.3% |
| Completed high school | 89.6% | 87.8% | 83.0% |
| Completed some college | 35.4% | 59.7% | 59.4% |
| Completed associate degree | 12.5% | 38.7% | 38.5% |
| Completed bachelors | 6.3% | 28.4% | 30.3% |
| Completed masters | 0.0% | 9.6% | 11.5% |
| Completed professional degree | 0.0% | 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 Thornton. Using the proficiency score averages, the average test scores for Thornton, WI schools is n/a. The average student to teacher ratio is n/a. In Thornton, WI, an average of 89.6% of students have completed 8th grade and an average of 89.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Clintonville, WI | 4,479 | 34% | 29.9% |
| Shawano, WI | 9,221 | 33% | 30.6% |
| Bonduel, WI | 1,462 | 33% | 31.6% |
| Marion, WI | 1,174 | 31% | 35.9% |
| Gresham, WI | 521 | 23% | 51.6% |
| Thornton, WI | 49 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Clinchport, VA | 49 | 87% | 81.3% |
| Paynes Creek, CA | 49 | 50% | 4.2% |
| Chenega, AK | 49 | 50% | 4.2% |
| Interior, SD | 49 | 50% | 4.2% |
| Starkweather, ND | 50 | 45% | 6.3% |
| Thornton, WI | 49 | n/a |