Arizona 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 | Greenlee County | AZ | 12.0:1 |
| 2 | Apache County | AZ | 14.0:1 |
| 3 | Coconino County | AZ | 14.6:1 |
| 4 | La Paz County | AZ | 15.5:1 |
| 5 | Gila County | AZ | 15.8:1 |
| 6 | Pima County | AZ | 15.9:1 |
| 7 | Navajo County | AZ | 16.4:1 |
| 8 | Cochise County | AZ | 16.7:1 |
| 9 | Graham County | AZ | 16.8:1 |
| 10 | Yavapai County | AZ | 17.0:1 |
| 11 | Maricopa County | AZ | 17.8:1 |
| 12 | Pinal County | AZ | 18.2:1 |
| 13 | Santa Cruz County | AZ | 18.9:1 |
| 14 | Mohave County | AZ | 20.4:1 |
| 15 | Yuma County | AZ | 21.5:1 |