| Index | East Dennis | Massachusetts | National |
| Average Test Scores | n/a | 52% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,167 | 79,221 |
| Total private schools | n/a | 508 | 24,874 |
| Total post-secondary schools | n/a | 193 | 7,963 |

| Index | East Dennis | Massachusetts | National |
| Completed 8th grade | 95.3% | 88.3% | 84.3% |
| Completed high school | 95.3% | 87.2% | 83.0% |
| Completed some college | 77.4% | 65.0% | 59.4% |
| Completed associate degree | 54.4% | 49.0% | 38.5% |
| Completed bachelors | 44.5% | 41.2% | 30.3% |
| Completed masters | 16.5% | 18.2% | 11.5% |
| Completed professional degree | 3.4% | 5.4% | 3.3% |
| Completed doctorate | 2.4% | 2.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in East Dennis. Using the proficiency score averages, the average test scores for East Dennis, MA schools is n/a. The average student to teacher ratio is n/a. In East Dennis, MA, an average of 95.3% of students have completed 8th grade and an average of 95.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| North Eastham, MA | 1,811 | 76% | 57.3% |
| Orleans, MA | 1,576 | 65% | 35.4% |
| Brewster, MA | 1,374 | 62% | 29.2% |
| East Sandwich, MA | 3,760 | 60% | 25.0% |
| Harwich Center, MA | 1,431 | 55% | 13.5% |
| East Dennis, MA | 3,165 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Shrub Oak, NY | 3,164 | 97% | 102.1% |
| Kingstree, SC | 3,164 | 33% | 32.3% |
| Dadeville, AL | 3,164 | 32% | 33.9% |
| DeWitt, AR | 3,164 | 47% | 1.4% |
| Shady Cove, OR | 3,163 | 40% | 17.7% |
| East Dennis, MA | 3,165 | n/a |