| Index | Old Saybrook Center | Connecticut | National |
| Average Test Scores | 71% | 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 | Old Saybrook Center | Connecticut | National |
| Completed 8th grade | 98.1% | 88.0% | 84.3% |
| Completed high school | 97.1% | 86.9% | 83.0% |
| Completed some college | 80.0% | 62.9% | 59.4% |
| Completed associate degree | 63.6% | 45.5% | 38.5% |
| Completed bachelors | 56.1% | 38.0% | 30.3% |
| Completed masters | 12.5% | 16.8% | 11.5% |
| Completed professional degree | 4.1% | 4.6% | 3.3% |
| Completed doctorate | 0.6% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Old Saybrook Center. Using the proficiency score averages, the average test scores for Old Saybrook Center, CT schools is 71%. The average student to teacher ratio is n/a. In Old Saybrook Center, CT, an average of 98.1% of students have completed 8th grade and an average of 97.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Madison Center, CT | 2,009 | 77% | 60.4% |
| Westbrook Center, CT | 2,257 | 77% | 60.4% |
| Chester Center, CT | 1,731 | 77% | 60.4% |
| Niantic, CT | 3,083 | 77% | 59.4% |
| Higganum, CT | 1,763 | 75% | 55.2% |
| Old Saybrook Center, CT | 1,984 | 71% | 46.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Afton, WY | 1,984 | 59% | 23.5% |
| Lenox, MA | 1,984 | 69% | 43.8% |
| Tylertown, MS | 1,985 | 26% | 45.6% |
| Berwick, ME | 1,985 | 49% | 1.6% |
| Maroa, IL | 1,982 | 40% | 17.2% |
| Old Saybrook Center, CT | 1,984 | 71% | 46.9% |
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