| Index | St. Johnsville | New York | National |
| Average Test Scores | 57% | 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 | St. Johnsville | New York | National |
| Completed 8th grade | 77.9% | 83.5% | 84.3% |
| Completed high school | 76.9% | 82.1% | 83.0% |
| Completed some college | 44.6% | 59.5% | 59.4% |
| Completed associate degree | 28.0% | 43.4% | 38.5% |
| Completed bachelors | 14.2% | 34.7% | 30.3% |
| Completed masters | 5.3% | 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 3 public schools, n/a private schools and n/a post-secondary schools in St. Johnsville. Using the proficiency score averages, the average test scores for St. Johnsville, NY schools is 57%. The average student to teacher ratio is n/a. In St. Johnsville, NY, an average of 77.9% of students have completed 8th grade and an average of 76.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Canajoharie, NY | 1,571 | 57% | 19.1% |
| Little Falls, NY | 4,673 | 55% | 13.5% |
| Dolgeville, NY | 2,494 | 52% | 8.7% |
| Cherry Valley, NY | 586 | 47% | 2.1% |
| Sharon Springs, NY | 616 | 47% | 2.1% |
| St. Johnsville, NY | 1,866 | 57% | 18.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Bourbon, MO | 1,866 | 44% | 9.0% |
| Kenyon, MN | 1,865 | 43% | 9.9% |
| Franklinville, NY | 1,865 | 48% | 0.5% |
| Olton, TX | 1,867 | 39% | 18.4% |
| Fort Montgomery, NY | 1,867 | 94% | 94.8% |
| St. Johnsville, NY | 1,866 | 57% | 18.8% |
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