| Index | Glastonbury Center | Connecticut | National |
| Average Test Scores | 67% | 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 |


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| Index | Glastonbury Center | Connecticut | National |
| Completed 8th grade | 92.6% | 88.0% | 84.3% |
| Completed high school | 91.1% | 86.9% | 83.0% |
| Completed some college | 75.7% | 62.9% | 59.4% |
| Completed associate degree | 61.4% | 45.5% | 38.5% |
| Completed bachelors | 54.6% | 38.0% | 30.3% |
| Completed masters | 27.7% | 16.8% | 11.5% |
| Completed professional degree | 5.3% | 4.6% | 3.3% |
| Completed doctorate | 2.0% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Glastonbury Center. Using the proficiency score averages, the average test scores for Glastonbury Center, CT schools is 67%. The average student to teacher ratio is n/a. In Glastonbury Center, CT, an average of 92.6% of students have completed 8th grade and an average of 91.1% 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% |
| Tariffville, CT | 1,810 | 70% | 44.8% |
| Plantsville, CT | 1,923 | 70% | 44.8% |
| Glastonbury Center, CT | 8,483 | 67% | 39.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Harrison, TN | 8,485 | 25% | 49.0% |
| Richboro, PA | 8,480 | 81% | 68.8% |
| Clinton, NC | 8,480 | 46% | 4.4% |
| Harrodsburg, KY | 8,480 | 49% | 1.7% |
| Conover, NC | 8,488 | 44% | 7.5% |
| Glastonbury Center, CT | 8,483 | 67% | 39.6% |