| Index | Centereach | New York | National |
| Average Test Scores | 55% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 8 | 4,060 | 79,221 |
| Total private schools | 1 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Centereach | New York | National |
| Completed 8th grade | 90.1% | 83.5% | 84.3% |
| Completed high school | 89.3% | 82.1% | 83.0% |
| Completed some college | 61.2% | 59.5% | 59.4% |
| Completed associate degree | 40.9% | 43.4% | 38.5% |
| Completed bachelors | 30.7% | 34.7% | 30.3% |
| Completed masters | 13.3% | 15.1% | 11.5% |
| Completed professional degree | 3.2% | 4.2% | 3.3% |
| Completed doctorate | 1.6% | 1.5% | 1.3% |
There are a total of 8 public schools, 1 private schools and n/a post-secondary schools in Centereach. Using the proficiency score averages, the average test scores for Centereach, NY schools is 55%. The average student to teacher ratio is n/a. In Centereach, NY, an average of 90.1% of students have completed 8th grade and an average of 89.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| West Sayville, NY | 4,875 | 82% | 69.4% |
| Shoreham, NY | 406 | 82% | 69.4% |
| Hauppauge, NY | 20,301 | 80% | 65.9% |
| Setauket-East Setauket, NY | 14,174 | 80% | 65.2% |
| Elwood, NY | 11,197 | 79% | 63.1% |
| Centereach, NY | 32,157 | 55% | 13.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Pullman, WA | 32,176 | 69% | 43.0% |
| North Olmsted, OH | 32,108 | 66% | 36.7% |
| Farmers Branch, TX | 32,211 | 45% | 7.5% |
| Laramie, WY | 32,096 | 60% | 24.9% |
| Bethel Park, PA | 32,222 | 79% | 63.7% |
| Centereach, NY | 32,157 | 55% | 13.4% |
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