| Index | Larchmont | New York | National |
| Average Test Scores | 76% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 4 | 4,060 | 79,221 |
| Total private schools | 1 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Larchmont | New York | National |
| Completed 8th grade | 97.9% | 83.5% | 84.3% |
| Completed high school | 97.9% | 82.1% | 83.0% |
| Completed some college | 94.7% | 59.5% | 59.4% |
| Completed associate degree | 90.3% | 43.4% | 38.5% |
| Completed bachelors | 84.1% | 34.7% | 30.3% |
| Completed masters | 45.9% | 15.1% | 11.5% |
| Completed professional degree | 21.4% | 4.2% | 3.3% |
| Completed doctorate | 5.7% | 1.5% | 1.3% |
There are a total of 4 public schools, 1 private schools and n/a post-secondary schools in Larchmont. Using the proficiency score averages, the average test scores for Larchmont, NY schools is 76%. The average student to teacher ratio is n/a. In Larchmont, NY, an average of 97.9% of students have completed 8th grade and an average of 97.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Orangeburg, NY | 4,454 | 98% | 103.1% |
| Sea Cliff, NY | 5,045 | 92% | 91.7% |
| Old Westbury, NY | 4,618 | 91% | 88.5% |
| Jericho, NY | 13,928 | 90% | 87.1% |
| Glen Head, NY | 4,843 | 89% | 85.7% |
| Larchmont, NY | 6,159 | 76% | 57.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Glenarden, MD | 6,158 | 16% | 66.7% |
| Carlstadt, NJ | 6,158 | 50% | 3.1% |
| Orange City, IA | 6,158 | 87% | 81.8% |
| Gun Barrel City, TX | 6,160 | 67% | 39.6% |
| Oyster Bay, NY | 6,160 | 76% | 58.3% |
| Larchmont, NY | 6,159 | 76% | 57.3% |
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