| Index | Belfast | Maine | National |
| Average Test Scores | 39% | 45% | 48% |
| Student/Teacher ratio | 13:1 | 14:1 | 16:1 |
| Total public schools | 6 | 345 | 79,221 |
| Total private schools | n/a | 89 | 24,874 |
| Total post-secondary schools | n/a | 45 | 7,963 |
| Index | Belfast | Maine | National |
| Completed 8th grade | 89.5% | 88.3% | 84.3% |
| Completed high school | 87.7% | 86.8% | 83.0% |
| Completed some college | 66.5% | 58.8% | 59.4% |
| Completed associate degree | 46.4% | 39.0% | 38.5% |
| Completed bachelors | 41.4% | 29.3% | 30.3% |
| Completed masters | 18.1% | 10.5% | 11.5% |
| Completed professional degree | 3.6% | 3.0% | 3.3% |
| Completed doctorate | 1.9% | 1.3% | 1.3% |
There are a total of 6 public schools, n/a private schools and n/a post-secondary schools in Belfast. Using the proficiency score averages, the average test scores for Belfast, ME schools is 39%. The average student to teacher ratio is 13:1. In Belfast, ME, an average of 89.5% of students have completed 8th grade and an average of 87.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Castine, ME | 813 | 75% | 56.3% |
| Camden, ME | 3,543 | 59% | 22.9% |
| Bucksport, ME | 2,879 | 41% | 14.9% |
| Searsport, ME | 1,039 | 32% | 33.0% |
| Belfast, ME | 6,710 | 39% | 19.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Avon, CO | 6,711 | 26% | 45.8% |
| Moapa Valley, NV | 6,708 | 55% | 15.3% |
| Scottsburg, IN | 6,715 | 50% | 3.1% |
| Lutherville, MD | 6,715 | 67% | 39.2% |
| Pembroke Park, FL | 6,716 | 53% | 10.4% |
| Belfast, ME | 6,710 | 39% | 19.8% |
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