| Index | Glenville | Connecticut | National |
| Average Test Scores | n/a | 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 | Glenville | Connecticut | National |
| Completed 8th grade | 94.9% | 88.0% | 84.3% |
| Completed high school | 94.3% | 86.9% | 83.0% |
| Completed some college | 79.1% | 62.9% | 59.4% |
| Completed associate degree | 67.0% | 45.5% | 38.5% |
| Completed bachelors | 59.7% | 38.0% | 30.3% |
| Completed masters | 26.5% | 16.8% | 11.5% |
| Completed professional degree | 10.8% | 4.6% | 3.3% |
| Completed doctorate | 1.9% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Glenville. Using the proficiency score averages, the average test scores for Glenville, CT schools is n/a. The average student to teacher ratio is n/a. In Glenville, CT, an average of 94.9% of students have completed 8th grade and an average of 94.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Orangeburg, NY | 4,544 | 98% | 103.1% |
| Sea Cliff, NY | 5,212 | 92% | 91.7% |
| Glen Head, NY | 4,979 | 89% | 85.7% |
| Bronxville, NY | 6,682 | 88% | 82.3% |
| Scarsdale, NY | 18,390 | 87% | 81.8% |
| Glenville, CT | 3,040 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Madison, IL | 3,040 | 19% | 61.2% |
| Boxford, MA | 3,040 | 72% | 50.3% |
| Chevy Chase, MD | 3,039 | 69% | 43.0% |
| Smithsburg, MD | 3,042 | 55% | 14.6% |
| Watkinsville, GA | 3,042 | 70% | 46.1% |
| Glenville, CT | 3,040 | n/a |