| Index | Belle Terre | New York | National |
| Average Test Scores | n/a | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | n/a | 4,060 | 79,221 |
| Total private schools | n/a | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Belle Terre | New York | National |
| Completed 8th grade | 98.5% | 83.5% | 84.3% |
| Completed high school | 98.5% | 82.1% | 83.0% |
| Completed some college | 87.5% | 59.5% | 59.4% |
| Completed associate degree | 76.8% | 43.4% | 38.5% |
| Completed bachelors | 71.9% | 34.7% | 30.3% |
| Completed masters | 43.4% | 15.1% | 11.5% |
| Completed professional degree | 27.7% | 4.2% | 3.3% |
| Completed doctorate | 10.7% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Belle Terre. Using the proficiency score averages, the average test scores for Belle Terre, NY schools is n/a. The average student to teacher ratio is n/a. In Belle Terre, NY, an average of 98.5% of students have completed 8th grade and an average of 98.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Westport, CT | 27,511 | 84% | 75.7% |
| Shoreham, NY | 375 | 82% | 69.8% |
| Hauppauge, NY | 19,661 | 80% | 66.3% |
| Setauket-East Setauket, NY | 14,174 | 80% | 65.6% |
| Elwood, NY | 11,582 | 79% | 63.5% |
| Belle Terre, NY | 791 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Morrill, NE | 791 | 43% | 10.4% |
| Deshler, NE | 791 | 46% | 4.2% |
| Summerton, SC | 791 | 31% | 34.7% |
| Kernville, CA | 791 | 30% | 37.5% |
| Grove City, MN | 791 | 53% | 10.9% |
| Belle Terre, NY | 791 | n/a |
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