| 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 | 6,980 | 87% | 80.2% |
| Darien, CT | 21,519 | 85% | 76.9% |
| Westport, CT | 27,511 | 84% | 75.7% |
| Ridgefield, CT | 7,228 | 83% | 73.5% |
| Setauket-East Setauket, NY | 14,174 | 80% | 65.6% |
| Southport, CT | 1,710 | 77% | 60.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Dallas Center, IA | 1,710 | 81% | 68.2% |
| Mill Hall, PA | 1,710 | 54% | 12.5% |
| Shortsville, NY | 1,709 | 58% | 19.8% |
| Burns, TN | 1,711 | 56% | 16.7% |
| Mazomanie, WI | 1,709 | 47% | 1.7% |
| Southport, CT | 1,710 | 77% | 60.4% |
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