| Index | Merrick | New York | National |
| Average Test Scores | 76% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 7 | 4,060 | 79,221 |
| Total private schools | 4 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Merrick | New York | National |
| Completed 8th grade | 95.6% | 83.5% | 84.3% |
| Completed high school | 95.3% | 82.1% | 83.0% |
| Completed some college | 79.5% | 59.5% | 59.4% |
| Completed associate degree | 65.3% | 43.4% | 38.5% |
| Completed bachelors | 58.4% | 34.7% | 30.3% |
| Completed masters | 28.1% | 15.1% | 11.5% |
| Completed professional degree | 9.0% | 4.2% | 3.3% |
| Completed doctorate | 1.7% | 1.5% | 1.3% |
There are a total of 7 public schools, 4 private schools and n/a post-secondary schools in Merrick. Using the proficiency score averages, the average test scores for Merrick, NY schools is 76%. The average student to teacher ratio is n/a. In Merrick, NY, an average of 95.6% of students have completed 8th grade and an average of 95.3% 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% |
| Merrick, NY | 20,594 | 76% | 58.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Gardner, MA | 20,605 | 38% | 20.6% |
| Clemmons, NC | 20,574 | 66% | 38.0% |
| Fernley, NV | 20,616 | 40% | 16.1% |
| Bryant, AR | 20,563 | 58% | 19.8% |
| Marquette, MI | 20,631 | 50% | 4.5% |
| Merrick, NY | 20,594 | 76% | 58.6% |
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