| Index | Mystic | Connecticut | National |
| Average Test Scores | 65% | 53% | 48% |
| Student/Teacher ratio | 13:1 | 14:1 | 16:1 |
| Total public schools | 4 | 654 | 79,221 |
| Total private schools | n/a | 207 | 24,874 |
| Total post-secondary schools | 1 | 81 | 7,963 |
| Index | Mystic | Connecticut | National |
| Completed 8th grade | 93.8% | 88.0% | 84.3% |
| Completed high school | 93.6% | 86.9% | 83.0% |
| Completed some college | 80.1% | 62.9% | 59.4% |
| Completed associate degree | 67.5% | 45.5% | 38.5% |
| Completed bachelors | 61.7% | 38.0% | 30.3% |
| Completed masters | 31.0% | 16.8% | 11.5% |
| Completed professional degree | 10.7% | 4.6% | 3.3% |
| Completed doctorate | 5.7% | 1.7% | 1.3% |
There are a total of 4 public schools, n/a private schools and 1 post-secondary schools in Mystic. Using the proficiency score averages, the average test scores for Mystic, CT schools is 65%. The average student to teacher ratio is 13:1. In Mystic, CT, an average of 93.8% of students have completed 8th grade and an average of 93.6% 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% |
| Ashaway, RI | 1,444 | 72% | 50.0% |
| Pawcatuck, CT | 5,024 | 68% | 42.4% |
| Mystic, CT | 4,776 | 65% | 34.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Cape May Court House, NJ | 4,776 | 41% | 14.0% |
| Carthage, MS | 4,773 | 26% | 45.8% |
| Palos Park, IL | 4,779 | 61% | 26.6% |
| Smithville, TN | 4,781 | 29% | 39.6% |
| Stafford Springs, CT | 4,784 | 54% | 12.2% |
| Mystic, CT | 4,776 | 65% | 34.4% |
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