| Index | Thompsonville | Connecticut | National |
| Average Test Scores | 51% | 53% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 654 | 79,221 |
| Total private schools | n/a | 207 | 24,874 |
| Total post-secondary schools | n/a | 81 | 7,963 |
| Index | Thompsonville | Connecticut | National |
| Completed 8th grade | 85.1% | 88.0% | 84.3% |
| Completed high school | 84.2% | 86.9% | 83.0% |
| Completed some college | 47.2% | 62.9% | 59.4% |
| Completed associate degree | 27.1% | 45.5% | 38.5% |
| Completed bachelors | 21.1% | 38.0% | 30.3% |
| Completed masters | 8.1% | 16.8% | 11.5% |
| Completed professional degree | 2.6% | 4.6% | 3.3% |
| Completed doctorate | 0.2% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Thompsonville. Using the proficiency score averages, the average test scores for Thompsonville, CT schools is 51%. The average student to teacher ratio is n/a. In Thompsonville, CT, an average of 85.1% of students have completed 8th grade and an average of 84.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Simsbury Center, CT | 6,271 | 79% | 63.5% |
| West Simsbury, CT | 3,131 | 77% | 60.4% |
| Weatogue, CT | 2,396 | 72% | 49.0% |
| Salmon Brook, CT | 2,348 | 71% | 47.4% |
| Longmeadow, MA | 15,736 | 70% | 46.7% |
| Thompsonville, CT | 8,563 | 51% | 6.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Monroe, NY | 8,567 | 62% | 29.9% |
| Sitka, AK | 8,569 | 45% | 6.5% |
| Hoquiam, WA | 8,570 | 35% | 26.3% |
| East Grand Forks, MN | 8,555 | 51% | 6.6% |
| Signal Mountain, TN | 8,574 | 73% | 52.1% |
| Thompsonville, CT | 8,563 | 51% | 6.3% |
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