| Index | Mastic | 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 | n/a | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |


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| Index | Mastic | New York | National |
| Completed 8th grade | 82.3% | 83.5% | 84.3% |
| Completed high school | 81.8% | 82.1% | 83.0% |
| Completed some college | 46.3% | 59.5% | 59.4% |
| Completed associate degree | 25.6% | 43.4% | 38.5% |
| Completed bachelors | 15.6% | 34.7% | 30.3% |
| Completed masters | 5.1% | 15.1% | 11.5% |
| Completed professional degree | 1.1% | 4.2% | 3.3% |
| Completed doctorate | 0.7% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Mastic. Using the proficiency score averages, the average test scores for Mastic, NY schools is n/a. The average student to teacher ratio is n/a. In Mastic, NY, an average of 82.3% of students have completed 8th grade and an average of 81.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Shoreham, NY | 375 | 82% | 69.8% |
| West Sayville, NY | 4,956 | 82% | 69.8% |
| Quogue, NY | 600 | 80% | 66.7% |
| Setauket-East Setauket, NY | 14,174 | 80% | 65.6% |
| Port Jefferson, NY | 8,016 | 77% | 60.8% |
| Mastic, NY | 15,068 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Depew, NY | 15,069 | 59% | 22.9% |
| St. Augustine, FL | 15,065 | 55% | 14.3% |
| Hayden, ID | 15,049 | 37% | 22.9% |
| Newport, KY | 15,045 | 37% | 23.6% |
| Greenwood Village, CO | 15,100 | 67% | 39.0% |
| Mastic, NY | 15,068 | n/a |