| Index | Garden City Park | New York | National |
| Average Test Scores | 73% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 2 | 4,060 | 79,221 |
| Total private schools | n/a | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Garden City Park | New York | National |
| Completed 8th grade | 89.3% | 83.5% | 84.3% |
| Completed high school | 88.5% | 82.1% | 83.0% |
| Completed some college | 63.7% | 59.5% | 59.4% |
| Completed associate degree | 46.2% | 43.4% | 38.5% |
| Completed bachelors | 39.3% | 34.7% | 30.3% |
| Completed masters | 15.3% | 15.1% | 11.5% |
| Completed professional degree | 4.0% | 4.2% | 3.3% |
| Completed doctorate | 1.1% | 1.5% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Garden City Park. Using the proficiency score averages, the average test scores for Garden City Park, NY schools is 73%. The average student to teacher ratio is n/a. In Garden City Park, NY, an average of 89.3% of students have completed 8th grade and an average of 88.5% 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% |
| Garden City Park, NY | 8,087 | 73% | 52.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Northfield, NJ | 8,088 | 53% | 10.9% |
| Oak Brook, IL | 8,085 | 79% | 64.6% |
| Ellsworth, ME | 8,085 | 48% | 1.0% |
| Bel Aire, KS | 8,082 | 40% | 17.2% |
| Ephrata, WA | 8,081 | 58% | 19.8% |
| Garden City Park, NY | 8,087 | 73% | 52.1% |
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