| Index | North Haven | Connecticut | National |
| Average Test Scores | 67% | 53% | 48% |
| 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 67%. 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 | Population | Avg. Test Scores | National Avg. |
| Guilford Center, CT | 2,653 | 81% | 67.7% |
| Cheshire Village, CT | 6,491 | 78% | 62.0% |
| Madison Center, CT | 2,009 | 77% | 60.4% |
| Orange, CT | 13,928 | 75% | 55.7% |
| Plantsville, CT | 1,923 | 70% | 44.8% |
| North Haven, CT | 23,665 | 67% | 39.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Muscatine, IA | 23,661 | 62% | 29.9% |
| Searcy, AR | 23,673 | 52% | 8.6% |
| Newberg, OR | 23,676 | 52% | 8.7% |
| Zion, IL | 23,677 | 15% | 68.8% |
| Windsor, CO | 23,679 | 50% | 4.8% |
| North Haven, CT | 23,665 | 67% | 39.1% |
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