| Index | Westport | Connecticut | National |
| Average Test Scores | 84% | 53% | 48% |
| Student/Teacher ratio | 11:1 | 14:1 | 16:1 |
| Total public schools | 9 | 654 | 79,221 |
| Total private schools | 3 | 207 | 24,874 |
| Total post-secondary schools | 2 | 81 | 7,963 |
| Index | Westport | Connecticut | National |
| Completed 8th grade | 98.3% | 88.0% | 84.3% |
| Completed high school | 98.0% | 86.9% | 83.0% |
| Completed some college | 88.3% | 62.9% | 59.4% |
| Completed associate degree | 80.1% | 45.5% | 38.5% |
| Completed bachelors | 76.9% | 38.0% | 30.3% |
| Completed masters | 38.9% | 16.8% | 11.5% |
| Completed professional degree | 11.5% | 4.6% | 3.3% |
| Completed doctorate | 2.9% | 1.7% | 1.3% |
There are a total of 9 public schools, 3 private schools and 2 post-secondary schools in Westport. Using the proficiency score averages, the average test scores for Westport, CT schools is 84%. The average student to teacher ratio is 11:1. In Westport, CT, an average of 98.3% of students have completed 8th grade and an average of 98.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Old Greenwich, CT | 6,980 | 87% | 80.2% |
| Riverside, CT | 8,855 | 86% | 78.6% |
| Darien, CT | 21,519 | 85% | 76.9% |
| Ridgefield, CT | 7,228 | 83% | 73.5% |
| Setauket-East Setauket, NY | 14,174 | 80% | 65.6% |
| Westport, CT | 27,511 | 84% | 75.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Millville, NJ | 27,485 | 30% | 38.5% |
| Danvers, MA | 27,549 | 57% | 18.2% |
| Wasco, CA | 27,553 | 27% | 43.3% |
| Yukon, OK | 27,557 | 52% | 7.8% |
| Mililani Town, HI | 27,459 | 60% | 24.5% |
| Westport, CT | 27,511 | 84% | 75.7% |
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