| Index | Cold Spring Harbor | New York | National |
| Average Test Scores | 87% | 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 | 1 | 483 | 7,963 |
| Index | Cold Spring Harbor | New York | National |
| Completed 8th grade | 97.3% | 83.5% | 84.3% |
| Completed high school | 97.3% | 82.1% | 83.0% |
| Completed some college | 83.0% | 59.5% | 59.4% |
| Completed associate degree | 76.8% | 43.4% | 38.5% |
| Completed bachelors | 71.2% | 34.7% | 30.3% |
| Completed masters | 35.3% | 15.1% | 11.5% |
| Completed professional degree | 11.5% | 4.2% | 3.3% |
| Completed doctorate | 4.3% | 1.5% | 1.3% |
There are a total of 2 public schools, n/a private schools and 1 post-secondary schools in Cold Spring Harbor. Using the proficiency score averages, the average test scores for Cold Spring Harbor, NY schools is 87%. The average student to teacher ratio is n/a. In Cold Spring Harbor, NY, an average of 97.3% of students have completed 8th grade and an average of 97.3% 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% |
| Cold Spring Harbor, NY | 2,864 | 87% | 81.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Ithaca, MI | 2,864 | 47% | 1.6% |
| Elgin, SC | 2,865 | 50% | 3.6% |
| New Madrid, MO | 2,863 | 37% | 22.9% |
| Monterey, TN | 2,865 | 30% | 37.5% |
| Decherd, TN | 2,862 | 17% | 64.6% |
| Cold Spring Harbor, NY | 2,864 | 87% | 81.3% |
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