| Index | Terryville | New York | National |
| Average Test Scores | 40% | 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 | Terryville | New York | National |
| Completed 8th grade | 86.5% | 83.5% | 84.3% |
| Completed high school | 85.6% | 82.1% | 83.0% |
| Completed some college | 59.4% | 59.5% | 59.4% |
| Completed associate degree | 42.5% | 43.4% | 38.5% |
| Completed bachelors | 34.6% | 34.7% | 30.3% |
| Completed masters | 13.8% | 15.1% | 11.5% |
| Completed professional degree | 2.8% | 4.2% | 3.3% |
| Completed doctorate | 0.3% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Terryville. Using the proficiency score averages, the average test scores for Terryville, NY schools is 40%. The average student to teacher ratio is n/a. In Terryville, NY, an average of 86.5% of students have completed 8th grade and an average of 85.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Shoreham, NY | 375 | 82% | 69.8% |
| West Sayville, NY | 4,956 | 82% | 69.8% |
| Hauppauge, NY | 19,661 | 80% | 66.3% |
| Setauket-East Setauket, NY | 14,174 | 80% | 65.6% |
| Port Jefferson, NY | 8,016 | 77% | 60.8% |
| Terryville, NY | 11,437 | 40% | 17.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Ravenna, OH | 11,436 | 57% | 19.2% |
| Emmaus, PA | 11,438 | 62% | 29.9% |
| Upper Montclair, NJ | 11,439 | 63% | 30.6% |
| Manvel, TX | 11,432 | 49% | 2.5% |
| Signal Hill, CA | 11,430 | 52% | 8.3% |
| Terryville, NY | 11,437 | 40% | 17.7% |
Here are the best places to live in New York
Check out the 10 safest cities in New York
Top 10 cities in New York with the best education system
See the best places to live in & around Terryville