| Index | Southport | Connecticut | National |
| Average Test Scores | 77% | 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 | Southport | Connecticut | National |
| Completed 8th grade | 95.5% | 88.0% | 84.3% |
| Completed high school | 95.5% | 86.9% | 83.0% |
| Completed some college | 86.2% | 62.9% | 59.4% |
| Completed associate degree | 75.6% | 45.5% | 38.5% |
| Completed bachelors | 72.1% | 38.0% | 30.3% |
| Completed masters | 29.2% | 16.8% | 11.5% |
| Completed professional degree | 5.9% | 4.6% | 3.3% |
| Completed doctorate | 1.1% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Southport. Using the proficiency score averages, the average test scores for Southport, CT schools is 77%. The average student to teacher ratio is n/a. In Southport, CT, an average of 95.5% of students have completed 8th grade and an average of 95.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Old Greenwich, CT | 7,189 | 87% | 80.2% |
| Darien, CT | 22,334 | 85% | 76.9% |
| Westport, CT | 28,385 | 84% | 75.7% |
| Ridgefield, CT | 7,492 | 83% | 73.5% |
| Setauket-East Setauket, NY | 14,614 | 80% | 65.6% |
| Southport, CT | 1,747 | 77% | 60.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Smith Valley, NV | 1,747 | 32% | 33.3% |
| Ackerman, MS | 1,747 | 54% | 12.5% |
| Essex, MA | 1,748 | 67% | 39.6% |
| McComb, OH | 1,746 | 67% | 39.2% |
| Patton, PA | 1,745 | 64% | 32.8% |
| Southport, CT | 1,747 | 77% | 60.4% |