| Index | Kittery | Maine | National |
| Average Test Scores | 53% | 45% | 48% |
| Student/Teacher ratio | 13:1 | 14:1 | 16:1 |
| Total public schools | 3 | 345 | 79,221 |
| Total private schools | n/a | 89 | 24,874 |
| Total post-secondary schools | n/a | 45 | 7,963 |
| Index | Kittery | Maine | National |
| Completed 8th grade | 93.1% | 88.3% | 84.3% |
| Completed high school | 91.0% | 86.8% | 83.0% |
| Completed some college | 73.7% | 58.8% | 59.4% |
| Completed associate degree | 52.8% | 39.0% | 38.5% |
| Completed bachelors | 41.1% | 29.3% | 30.3% |
| Completed masters | 16.0% | 10.5% | 11.5% |
| Completed professional degree | 4.5% | 3.0% | 3.3% |
| Completed doctorate | 2.0% | 1.3% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Kittery. Using the proficiency score averages, the average test scores for Kittery, ME schools is 53%. The average student to teacher ratio is 13:1. In Kittery, ME, an average of 93.1% of students have completed 8th grade and an average of 91.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Durham, NH | 12,016 | 76% | 57.8% |
| Portsmouth, NH | 21,418 | 75% | 55.8% |
| Hampton, NH | 10,002 | 70% | 45.1% |
| York Harbor, ME | 3,484 | 66% | 36.5% |
| Kittery Point, ME | 1,034 | 65% | 34.4% |
| Kittery, ME | 5,297 | 53% | 9.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Mount Carmel, TN | 5,297 | 45% | 7.3% |
| Adel, GA | 5,297 | 35% | 28.1% |
| Cutler, CA | 5,296 | 35% | 28.1% |
| Linton, IN | 5,293 | 46% | 3.5% |
| Highwood, IL | 5,293 | 43% | 11.5% |
| Kittery, ME | 5,297 | 53% | 9.9% |
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