| Index | Gales Ferry | Connecticut | National |
| Average Test Scores | 52% | 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 | Gales Ferry | Connecticut | National |
| Completed 8th grade | 98.3% | 88.0% | 84.3% |
| Completed high school | 98.3% | 86.9% | 83.0% |
| Completed some college | 63.3% | 62.9% | 59.4% |
| Completed associate degree | 43.1% | 45.5% | 38.5% |
| Completed bachelors | 31.6% | 38.0% | 30.3% |
| Completed masters | 13.9% | 16.8% | 11.5% |
| Completed professional degree | 5.5% | 4.6% | 3.3% |
| Completed doctorate | 5.5% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Gales Ferry. Using the proficiency score averages, the average test scores for Gales Ferry, CT schools is 52%. The average student to teacher ratio is n/a. In Gales Ferry, CT, an average of 98.3% of students have completed 8th grade and an average of 98.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Fishers Island, NY | 61 | 80% | 66.7% |
| Stonington, CT | 899 | 77% | 60.4% |
| Niantic, CT | 3,083 | 77% | 59.4% |
| Old Saybrook Center, CT | 1,984 | 71% | 46.9% |
| Pawcatuck, CT | 5,024 | 68% | 42.4% |
| Gales Ferry, CT | 1,093 | 52% | 7.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Bronson, FL | 1,093 | 46% | 4.7% |
| Hector, MN | 1,093 | 50% | 3.1% |
| Marlborough, NH | 1,093 | 32% | 33.3% |
| Jamestown, IN | 1,092 | 64% | 32.3% |
| Winona, MO | 1,094 | 54% | 12.5% |
| Gales Ferry, CT | 1,093 | 52% | 7.3% |
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