| Index | Higganum | Connecticut | National |
| Average Test Scores | 75% | 53% | 48% |
| Student/Teacher ratio | 12:1 | 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 | Higganum | Connecticut | National |
| Completed 8th grade | 89.0% | 88.0% | 84.3% |
| Completed high school | 89.0% | 86.9% | 83.0% |
| Completed some college | 72.2% | 62.9% | 59.4% |
| Completed associate degree | 60.6% | 45.5% | 38.5% |
| Completed bachelors | 55.3% | 38.0% | 30.3% |
| Completed masters | 32.5% | 16.8% | 11.5% |
| Completed professional degree | 8.5% | 4.6% | 3.3% |
| Completed doctorate | 5.4% | 1.7% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Higganum. Using the proficiency score averages, the average test scores for Higganum, CT schools is 75%. The average student to teacher ratio is 12:1. In Higganum, CT, an average of 89.0% of students have completed 8th grade and an average of 89.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Guilford Center, CT | 2,653 | 81% | 67.7% |
| Chester Center, CT | 1,731 | 77% | 60.4% |
| Madison Center, CT | 2,009 | 77% | 60.4% |
| Westbrook Center, CT | 2,257 | 77% | 60.4% |
| Old Saybrook Center, CT | 1,984 | 71% | 46.9% |
| Higganum, CT | 1,763 | 75% | 55.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Star City, AR | 1,762 | 29% | 39.2% |
| Twin Lake, MI | 1,764 | 42% | 12.5% |
| Gordon, NE | 1,764 | 50% | 3.6% |
| Wewahitchka, FL | 1,762 | 49% | 2.1% |
| Batesville, TX | 1,764 | 20% | 59.4% |
| Higganum, CT | 1,763 | 75% | 55.2% |
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