| Index | Copiague | New York | National |
| Average Test Scores | 53% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 5 | 4,060 | 79,221 |
| Total private schools | 1 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Copiague | New York | National |
| Completed 8th grade | 77.5% | 83.5% | 84.3% |
| Completed high school | 76.2% | 82.1% | 83.0% |
| Completed some college | 41.7% | 59.5% | 59.4% |
| Completed associate degree | 25.6% | 43.4% | 38.5% |
| Completed bachelors | 16.9% | 34.7% | 30.3% |
| Completed masters | 6.7% | 15.1% | 11.5% |
| Completed professional degree | 1.0% | 4.2% | 3.3% |
| Completed doctorate | 0.7% | 1.5% | 1.3% |
There are a total of 5 public schools, 1 private schools and n/a post-secondary schools in Copiague. Using the proficiency score averages, the average test scores for Copiague, NY schools is 53%. The average student to teacher ratio is n/a. In Copiague, NY, an average of 77.5% of students have completed 8th grade and an average of 76.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sea Cliff, NY | 5,045 | 92% | 91.7% |
| Old Westbury, NY | 4,618 | 91% | 88.5% |
| Jericho, NY | 13,928 | 90% | 87.1% |
| Old Bethpage, NY | 5,450 | 90% | 86.5% |
| Glen Head, NY | 4,843 | 89% | 85.7% |
| Copiague, NY | 23,200 | 53% | 9.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Simpsonville, SC | 23,200 | 63% | 31.7% |
| Oxford, OH | 23,192 | 73% | 51.7% |
| Clayton, NC | 23,179 | 43% | 11.0% |
| Bluffton, SC | 23,176 | 59% | 22.6% |
| Avon, OH | 23,233 | 87% | 80.2% |
| Copiague, NY | 23,200 | 53% | 9.4% |
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