| Index | New London | Connecticut | National |
| Average Test Scores | 26% | 53% | 48% |
| Student/Teacher ratio | 12:1 | 14:1 | 16:1 |
| Total public schools | 14 | 654 | 79,221 |
| Total private schools | 6 | 207 | 24,874 |
| Total post-secondary schools | 4 | 81 | 7,963 |
| Index | New London | Connecticut | National |
| Completed 8th grade | 79.5% | 88.0% | 84.3% |
| Completed high school | 78.1% | 86.9% | 83.0% |
| Completed some college | 50.8% | 62.9% | 59.4% |
| Completed associate degree | 29.9% | 45.5% | 38.5% |
| Completed bachelors | 23.7% | 38.0% | 30.3% |
| Completed masters | 9.2% | 16.8% | 11.5% |
| Completed professional degree | 2.7% | 4.6% | 3.3% |
| Completed doctorate | 1.3% | 1.7% | 1.3% |
There are a total of 14 public schools, 6 private schools and 4 post-secondary schools in New London. Using the proficiency score averages, the average test scores for New London, CT schools is 26%. The average student to teacher ratio is 12:1. In New London, CT, an average of 79.5% of students have completed 8th grade and an average of 78.1% 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% |
| New London, CT | 27,001 | 26% | 45.5% |
| City | Population | Avg. Test Scores | National Avg. |
| West Chicago, IL | 26,998 | 28% | 40.9% |
| Maryland Heights, MO | 26,996 | 60% | 25.0% |
| Norco, CA | 27,021 | 48% | 0.9% |
| Magna, UT | 27,029 | 26% | 46.7% |
| Bristol, TN | 26,973 | 42% | 12.8% |
| New London, CT | 27,001 | 26% | 45.5% |
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