| Index | Wantagh | New York | National |
| Average Test Scores | 75% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 6 | 4,060 | 79,221 |
| Total private schools | 1 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Wantagh | New York | National |
| Completed 8th grade | 96.2% | 83.5% | 84.3% |
| Completed high school | 95.8% | 82.1% | 83.0% |
| Completed some college | 73.0% | 59.5% | 59.4% |
| Completed associate degree | 56.8% | 43.4% | 38.5% |
| Completed bachelors | 46.3% | 34.7% | 30.3% |
| Completed masters | 19.1% | 15.1% | 11.5% |
| Completed professional degree | 3.1% | 4.2% | 3.3% |
| Completed doctorate | 0.7% | 1.5% | 1.3% |
There are a total of 6 public schools, 1 private schools and n/a post-secondary schools in Wantagh. Using the proficiency score averages, the average test scores for Wantagh, NY schools is 75%. The average student to teacher ratio is n/a. In Wantagh, NY, an average of 96.2% of students have completed 8th grade and an average of 95.8% 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% |
| Wantagh, NY | 17,548 | 75% | 56.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Manassas Park, VA | 17,548 | 73% | 52.1% |
| Lithia Springs, GA | 17,545 | 36% | 25.5% |
| Godfrey, IL | 17,540 | 21% | 56.3% |
| Marion, IL | 17,539 | 33% | 30.9% |
| Paradise, CA | 17,560 | 52% | 8.9% |
| Wantagh, NY | 17,548 | 75% | 56.1% |
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