Massachusetts public school districts ranked by the lowest county-wide student-to-teacher ratio. Counties need at least 3 schools and 1,000 students to qualify.
| # | County | State | Ratio |
|---|---|---|---|
| 1 | Nantucket County | MA | 10.0:1 |
| 2 | Berkshire County | MA | 10.1:1 |
| 3 | Barnstable County | MA | 10.3:1 |
| 4 | Franklin County | MA | 10.4:1 |
| 5 | Hampshire County | MA | 10.6:1 |
| 6 | Suffolk County | MA | 11.0:1 |
| 7 | Hampden County | MA | 11.4:1 |
| 8 | Middlesex County | MA | 11.7:1 |
| 9 | Essex County | MA | 11.8:1 |
| 10 | Norfolk County | MA | 12.4:1 |
| 11 | Bristol County | MA | 12.6:1 |
| 12 | Worcester County | MA | 12.7:1 |
| 13 | Plymouth County | MA | 12.9:1 |