| Index | Endwell | New York | National |
| Average Test Scores | 67% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 3 | 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 | Endwell | New York | National |
| Completed 8th grade | 91.7% | 83.5% | 84.3% |
| Completed high school | 91.4% | 82.1% | 83.0% |
| Completed some college | 69.8% | 59.5% | 59.4% |
| Completed associate degree | 52.0% | 43.4% | 38.5% |
| Completed bachelors | 36.3% | 34.7% | 30.3% |
| Completed masters | 14.9% | 15.1% | 11.5% |
| Completed professional degree | 3.3% | 4.2% | 3.3% |
| Completed doctorate | 1.6% | 1.5% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Endwell. Using the proficiency score averages, the average test scores for Endwell, NY schools is 67%. The average student to teacher ratio is n/a. In Endwell, NY, an average of 91.7% of students have completed 8th grade and an average of 91.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Owego, NY | 3,850 | 68% | 41.0% |
| Greene, NY | 1,502 | 62% | 29.9% |
| Friendsville, PA | 118 | 62% | 29.2% |
| Whitney Point, NY | 1,065 | 58% | 21.2% |
| Johnson City, NY | 14,329 | 54% | 12.8% |
| Endwell, NY | 11,396 | 67% | 39.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Tarrytown, NY | 11,394 | 54% | 11.5% |
| Highland City, FL | 11,392 | 60% | 24.0% |
| Martinsville, NJ | 11,384 | 75% | 56.8% |
| Guymon, OK | 11,381 | 28% | 42.5% |
| Stuarts Draft, VA | 11,380 | 80% | 66.4% |
| Endwell, NY | 11,396 | 67% | 39.2% |