| Index | North Haven | Connecticut | National |
| Average Test Scores | 47% | 47% | 49% |
| Student/Teacher ratio | 14:1 | 14:1 | 16:1 |
| Total public schools | 8 | 654 | 79,221 |
| Total private schools | 1 | 207 | 24,874 |
| Total post-secondary schools | 2 | 81 | 7,963 |
| Index | North Haven | Connecticut | National |
| Completed 8th grade | 93.7% | 88.0% | 84.3% |
| Completed high school | 93.1% | 86.9% | 83.0% |
| Completed some college | 65.7% | 62.9% | 59.4% |
| Completed associate degree | 48.3% | 45.5% | 38.5% |
| Completed bachelors | 41.8% | 38.0% | 30.3% |
| Completed masters | 18.1% | 16.8% | 11.5% |
| Completed professional degree | 6.4% | 4.6% | 3.3% |
| Completed doctorate | 3.0% | 1.7% | 1.3% |
There are a total of 8 public schools, 1 private schools and 2 post-secondary schools in North Haven. Using the proficiency score averages, the average test scores for North Haven, CT schools is 47%. The average student to teacher ratio is 14:1. In North Haven, CT, an average of 93.7% of students have completed 8th grade and an average of 93.1% have completed high school.
| City, State | Population | Avg. Test Scores | National Avg. |
| Madison Center, CT | 2,404 | 85% | 72% |
| Guilford Center, CT | 2,517 | 78% | 59% |
| Orange, CT | 13,941 | 72% | 45% |
| Cheshire Village, CT | 6,103 | 67% | 37% |
| Portland, CT | 5,607 | 66% | 34% |
| North Haven, CT | 23,888 | 47% | 4% |
| City, State | Population | Avg. Test Scores | National Avg. |
| Fort Washington, MD | 23,895 | 20% | 59% |
| Watertown, WI | 23,878 | 45% | 8% |
| Williston, ND | 23,902 | 29% | 41% |
| Muscatine, IA | 23,909 | 71% | 44% |
| Fountain Hills, AZ | 23,863 | 45% | 8% |
| North Haven, CT | 23,888 | 47% | 4% |
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