| Index | Gardnertown | New York | National |
| Average Test Scores | n/a | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | n/a | 4,060 | 79,221 |
| Total private schools | n/a | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Gardnertown | New York | National |
| Completed 8th grade | 89.3% | 83.5% | 84.3% |
| Completed high school | 87.7% | 82.1% | 83.0% |
| Completed some college | 54.3% | 59.5% | 59.4% |
| Completed associate degree | 31.9% | 43.4% | 38.5% |
| Completed bachelors | 23.7% | 34.7% | 30.3% |
| Completed masters | 7.9% | 15.1% | 11.5% |
| Completed professional degree | 3.4% | 4.2% | 3.3% |
| Completed doctorate | 1.4% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Gardnertown. Using the proficiency score averages, the average test scores for Gardnertown, NY schools is n/a. The average student to teacher ratio is n/a. In Gardnertown, NY, an average of 89.3% of students have completed 8th grade and an average of 87.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Shrub Oak, NY | 3,094 | 97% | 102.1% |
| Fort Montgomery, NY | 1,867 | 94% | 94.8% |
| Cold Spring, NY | 1,911 | 81% | 68.2% |
| Firthcliffe, NY | 5,051 | 77% | 60.4% |
| Hopewell Junction, NY | 725 | 74% | 54.9% |
| Gardnertown, NY | 4,011 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Ovilla, TX | 4,010 | 64% | 32.3% |
| Wright City, MO | 4,012 | 36% | 24.3% |
| Esparto, CA | 4,009 | 27% | 44.1% |
| Greencastle, PA | 4,008 | 69% | 44.4% |
| Clay Center, KS | 4,007 | 44% | 8.6% |
| Gardnertown, NY | 4,011 | n/a |
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