| Index | Clayton | New York | National |
| Average Test Scores | 65% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 3 | 4,060 | 79,221 |
| Total private schools | n/a | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Clayton | New York | National |
| Completed 8th grade | 89.2% | 83.5% | 84.3% |
| Completed high school | 88.9% | 82.1% | 83.0% |
| Completed some college | 54.7% | 59.5% | 59.4% |
| Completed associate degree | 35.9% | 43.4% | 38.5% |
| Completed bachelors | 25.6% | 34.7% | 30.3% |
| Completed masters | 9.7% | 15.1% | 11.5% |
| Completed professional degree | 3.3% | 4.2% | 3.3% |
| Completed doctorate | 0.8% | 1.5% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Clayton. Using the proficiency score averages, the average test scores for Clayton, NY schools is 65%. The average student to teacher ratio is n/a. In Clayton, NY, an average of 89.2% of students have completed 8th grade and an average of 88.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Calcium, NY | 3,548 | 67% | 39.6% |
| Theresa, NY | 1,035 | 60% | 25.0% |
| Evans Mills, NY | 449 | 60% | 24.0% |
| La Fargeville, NY | 733 | 57% | 17.7% |
| Cape Vincent, NY | 525 | 55% | 14.6% |
| Clayton, NY | 1,932 | 65% | 34.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Morenci, MI | 1,932 | 36% | 25.5% |
| Jonestown, PA | 1,932 | 57% | 17.7% |
| Milo, ME | 1,932 | 21% | 56.3% |
| Lykens, PA | 1,932 | 55% | 14.1% |
| Vonore, TN | 1,931 | 28% | 42.7% |
| Clayton, NY | 1,932 | 65% | 34.4% |
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