| Index | Brewster | New York | National |
| Average Test Scores | 59% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 5 | 4,060 | 79,221 |
| Total private schools | 3 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Brewster | New York | National |
| Completed 8th grade | 60.5% | 83.5% | 84.3% |
| Completed high school | 59.3% | 82.1% | 83.0% |
| Completed some college | 37.3% | 59.5% | 59.4% |
| Completed associate degree | 21.1% | 43.4% | 38.5% |
| Completed bachelors | 16.2% | 34.7% | 30.3% |
| Completed masters | 5.7% | 15.1% | 11.5% |
| Completed professional degree | 0.5% | 4.2% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of 5 public schools, 3 private schools and n/a post-secondary schools in Brewster. Using the proficiency score averages, the average test scores for Brewster, NY schools is 59%. The average student to teacher ratio is n/a. In Brewster, NY, an average of 60.5% of students have completed 8th grade and an average of 59.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lincolndale, NY | 1,407 | 99% | 105.2% |
| Carmel Hamlet, NY | 6,278 | 99% | 105.2% |
| Shrub Oak, NY | 3,094 | 97% | 102.1% |
| Ridgefield, CT | 7,228 | 83% | 73.5% |
| Croton-on-Hudson, NY | 8,121 | 78% | 62.8% |
| Brewster, NY | 2,257 | 59% | 22.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Westbrook Center, CT | 2,257 | 77% | 60.4% |
| Snow Hill, NC | 2,257 | 33% | 30.4% |
| Yorktown, TX | 2,257 | 33% | 30.6% |
| Colfax, CA | 2,258 | 43% | 11.1% |
| Eldorado, TX | 2,258 | 45% | 6.3% |
| Brewster, NY | 2,257 | 59% | 22.6% |
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