| Index | Croghan | 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 | Croghan | New York | National |
| Completed 8th grade | 90.6% | 83.5% | 84.3% |
| Completed high school | 85.9% | 82.1% | 83.0% |
| Completed some college | 42.6% | 59.5% | 59.4% |
| Completed associate degree | 26.8% | 43.4% | 38.5% |
| Completed bachelors | 14.3% | 34.7% | 30.3% |
| Completed masters | 6.4% | 15.1% | 11.5% |
| Completed professional degree | 0.0% | 4.2% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Croghan. Using the proficiency score averages, the average test scores for Croghan, NY schools is n/a. The average student to teacher ratio is n/a. In Croghan, NY, an average of 90.6% of students have completed 8th grade and an average of 85.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lowville, NY | 3,442 | 68% | 41.7% |
| Copenhagen, NY | 754 | 53% | 10.4% |
| Carthage, NY | 3,443 | 52% | 8.6% |
| Croghan, NY | 616 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Casco, WI | 616 | 55% | 14.6% |
| Everly, IA | 616 | 70% | 45.8% |
| Hershey, NE | 616 | 52% | 8.3% |
| Fremont, WI | 616 | 60% | 25.0% |
| Dunseith, ND | 616 | 15% | 68.4% |
| Croghan, NY | 616 | n/a |
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