| Index | Calais | Maine | National |
| Average Test Scores | 40% | 45% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 4 | 345 | 79,221 |
| Total private schools | n/a | 89 | 24,874 |
| Total post-secondary schools | 1 | 45 | 7,963 |
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| Index | Calais | Maine | National |
| Completed 8th grade | 81.8% | 88.3% | 84.3% |
| Completed high school | 77.5% | 86.8% | 83.0% |
| Completed some college | 48.8% | 58.8% | 59.4% |
| Completed associate degree | 28.4% | 39.0% | 38.5% |
| Completed bachelors | 13.6% | 29.3% | 30.3% |
| Completed masters | 4.1% | 10.5% | 11.5% |
| Completed professional degree | 0.9% | 3.0% | 3.3% |
| Completed doctorate | 0.3% | 1.3% | 1.3% |
There are a total of 4 public schools, n/a private schools and 1 post-secondary schools in Calais. Using the proficiency score averages, the average test scores for Calais, ME schools is 40%. The average student to teacher ratio is 15:1. In Calais, ME, an average of 81.8% of students have completed 8th grade and an average of 77.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Woodland, ME | 1,150 | 37% | 22.9% |
| Calais, ME | 3,129 | 40% | 17.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Alva, FL | 3,129 | 56% | 15.6% |
| Benson, MN | 3,130 | 51% | 5.2% |
| Huntingtown, MD | 3,130 | 64% | 33.6% |
| Fiskdale, MA | 3,128 | 61% | 27.8% |
| Cut Bank, MT | 3,127 | 41% | 14.6% |
| Calais, ME | 3,129 | 40% | 17.7% |
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