| Index | Hauppauge | New York | National |
| Average Test Scores | 80% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 3 | 4,060 | 79,221 |
| Total private schools | 1 | 1,092 | 24,874 |
| Total post-secondary schools | 3 | 483 | 7,963 |
| Index | Hauppauge | New York | National |
| Completed 8th grade | 93.8% | 83.5% | 84.3% |
| Completed high school | 93.6% | 82.1% | 83.0% |
| Completed some college | 70.7% | 59.5% | 59.4% |
| Completed associate degree | 52.5% | 43.4% | 38.5% |
| Completed bachelors | 43.4% | 34.7% | 30.3% |
| Completed masters | 19.2% | 15.1% | 11.5% |
| Completed professional degree | 5.0% | 4.2% | 3.3% |
| Completed doctorate | 1.3% | 1.5% | 1.3% |
There are a total of 3 public schools, 1 private schools and 3 post-secondary schools in Hauppauge. Using the proficiency score averages, the average test scores for Hauppauge, NY schools is 80%. The average student to teacher ratio is n/a. In Hauppauge, NY, an average of 93.8% of students have completed 8th grade and an average of 93.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Old Bethpage, NY | 5,640 | 90% | 86.5% |
| Cold Spring Harbor, NY | 2,967 | 87% | 81.3% |
| Plainview, NY | 26,865 | 83% | 72.1% |
| West Sayville, NY | 5,133 | 82% | 69.8% |
| Setauket-East Setauket, NY | 14,614 | 80% | 65.6% |
| Hauppauge, NY | 20,417 | 80% | 66.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Meadowbrook, VA | 20,418 | 70% | 46.6% |
| West St. Paul, MN | 20,423 | 44% | 9.2% |
| Havelock, NC | 20,409 | 49% | 2.9% |
| Belle Glade, FL | 20,401 | 32% | 32.6% |
| Arlington, WA | 20,435 | 54% | 11.7% |
| Hauppauge, NY | 20,417 | 80% | 66.3% |
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