New Jersey public school districts ranked by the highest county-wide student-to-teacher ratio. Counties need at least 3 schools and 1,000 students to qualify.
| # | County | State | Ratio |
|---|---|---|---|
| 1 | Essex County | NJ | 13.7:1 |
| 2 | Union County | NJ | 12.5:1 |
| 3 | Hudson County | NJ | 12.4:1 |
| 4 | Mercer County | NJ | 12.2:1 |
| 5 | Cumberland County | NJ | 12.1:1 |
| 6 | Camden County | NJ | 12.0:1 |
| 7 | Passaic County | NJ | 11.9:1 |
| 8 | Middlesex County | NJ | 11.7:1 |
| 9 | Ocean County | NJ | 11.7:1 |
| 10 | Gloucester County | NJ | 11.6:1 |
| 11 | Burlington County | NJ | 11.5:1 |
| 12 | Salem County | NJ | 11.5:1 |
| 13 | Bergen County | NJ | 11.2:1 |
| 14 | Atlantic County | NJ | 10.8:1 |
| 15 | Monmouth County | NJ | 10.6:1 |
| 16 | Sussex County | NJ | 10.6:1 |
| 17 | Morris County | NJ | 10.5:1 |
| 18 | Warren County | NJ | 10.5:1 |
| 19 | Somerset County | NJ | 10.4:1 |
| 20 | Cape May County | NJ | 9.8:1 |
| 21 | Hunterdon County | NJ | 9.5:1 |