| Index | Belleville | New York | National |
| Average Test Scores | 54% | 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 |


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| Index | Belleville | New York | National |
| Completed 8th grade | 75.2% | 83.5% | 84.3% |
| Completed high school | 75.2% | 82.1% | 83.0% |
| Completed some college | 24.8% | 59.5% | 59.4% |
| Completed associate degree | 13.7% | 43.4% | 38.5% |
| Completed bachelors | 13.7% | 34.7% | 30.3% |
| Completed masters | 6.0% | 15.1% | 11.5% |
| Completed professional degree | 0.0% | 4.2% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Belleville. Using the proficiency score averages, the average test scores for Belleville, NY schools is 54%. The average student to teacher ratio is n/a. In Belleville, NY, an average of 75.2% of students have completed 8th grade and an average of 75.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Adams, NY | 1,894 | 66% | 37.0% |
| Sandy Creek, NY | 585 | 59% | 22.6% |
| Sackets Harbor, NY | 1,585 | 58% | 20.8% |
| Adams Center, NY | 1,035 | 50% | 4.2% |
| Mannsville, NY | 408 | 50% | 3.1% |
| Belleville, NY | 289 | 54% | 12.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Clarksburg, MO | 289 | 45% | 6.3% |
| El Nido, CA | 289 | 32% | 33.3% |
| Lyman, WA | 289 | 70% | 44.8% |
| Plummer, MN | 288 | 62% | 29.2% |
| Helix, OR | 290 | 52% | 8.3% |
| Belleville, NY | 289 | 54% | 12.5% |