| Index | Terryville | Connecticut | National |
| Average Test Scores | 51% | 53% | 48% |
| Student/Teacher ratio | 13:1 | 14:1 | 16:1 |
| Total public schools | 5 | 654 | 79,221 |
| Total private schools | n/a | 207 | 24,874 |
| Total post-secondary schools | n/a | 81 | 7,963 |
| Index | Terryville | Connecticut | National |
| Completed 8th grade | 80.3% | 88.0% | 84.3% |
| Completed high school | 80.1% | 86.9% | 83.0% |
| Completed some college | 48.0% | 62.9% | 59.4% |
| Completed associate degree | 32.0% | 45.5% | 38.5% |
| Completed bachelors | 20.3% | 38.0% | 30.3% |
| Completed masters | 6.7% | 16.8% | 11.5% |
| Completed professional degree | 1.0% | 4.6% | 3.3% |
| Completed doctorate | 0.2% | 1.7% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Terryville. Using the proficiency score averages, the average test scores for Terryville, CT schools is 51%. The average student to teacher ratio is 13:1. In Terryville, CT, an average of 80.3% of students have completed 8th grade and an average of 80.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Simsbury Center, CT | 6,271 | 79% | 63.5% |
| Cheshire Village, CT | 6,491 | 78% | 62.0% |
| West Simsbury, CT | 3,131 | 77% | 60.4% |
| Northwest Harwinton, CT | 2,897 | 77% | 60.4% |
| Weatogue, CT | 2,396 | 72% | 49.0% |
| Terryville, CT | 5,019 | 51% | 5.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Wapato, WA | 5,018 | 32% | 34.4% |
| White Hall, AR | 5,017 | 51% | 6.5% |
| Allegan, MI | 5,017 | 40% | 17.5% |
| Sulphur, OK | 5,023 | 38% | 20.8% |
| Pawcatuck, CT | 5,024 | 68% | 42.4% |
| Terryville, CT | 5,019 | 51% | 5.6% |
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