| Index | Old Brookville | 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 | 1 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Old Brookville | New York | National |
| Completed 8th grade | 96.6% | 83.5% | 84.3% |
| Completed high school | 95.6% | 82.1% | 83.0% |
| Completed some college | 88.1% | 59.5% | 59.4% |
| Completed associate degree | 77.8% | 43.4% | 38.5% |
| Completed bachelors | 72.8% | 34.7% | 30.3% |
| Completed masters | 36.6% | 15.1% | 11.5% |
| Completed professional degree | 22.1% | 4.2% | 3.3% |
| Completed doctorate | 3.8% | 1.5% | 1.3% |
There are a total of n/a public schools, 1 private schools and n/a post-secondary schools in Old Brookville. Using the proficiency score averages, the average test scores for Old Brookville, NY schools is n/a. The average student to teacher ratio is n/a. In Old Brookville, NY, an average of 96.6% of students have completed 8th grade and an average of 95.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sea Cliff, NY | 5,045 | 92% | 91.7% |
| Cedarhurst, NY | 6,642 | 91% | 89.6% |
| Old Westbury, NY | 4,618 | 91% | 88.5% |
| Jericho, NY | 13,928 | 90% | 87.1% |
| Old Bethpage, NY | 5,450 | 90% | 86.5% |
| Old Brookville, NY | 1,791 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Montpelier, IN | 1,790 | 45% | 7.3% |
| Manchester, OH | 1,790 | 61% | 27.1% |
| Bethlehem Village, CT | 1,792 | 62% | 29.2% |
| French Lick, IN | 1,792 | 51% | 5.2% |
| Epworth, IA | 1,792 | 83% | 72.9% |
| Old Brookville, NY | 1,791 | n/a |
Here are the best places to live in New York
These are the 10 cheapest cities in New York
Safest States In The US
Check out the 10 safest cities in New York