Montana public school districts ranked by total public school enrollment across every school in the county. Counties need at least 3 schools and 1,000 students to qualify.
| # | County | State | Students |
|---|---|---|---|
| 1 | Yellowstone County | MT | 23,853 |
| 2 | Flathead County | MT | 14,957 |
| 3 | Gallatin County | MT | 14,170 |
| 4 | Missoula County | MT | 14,099 |
| 5 | Cascade County | MT | 11,577 |
| 6 | Lewis and Clark County | MT | 9,786 |
| 7 | Ravalli County | MT | 5,729 |
| 8 | Silver Bow County | MT | 4,364 |
| 9 | Lake County | MT | 4,302 |
| 10 | Hill County | MT | 2,958 |
| 11 | Glacier County | MT | 2,685 |
| 12 | Big Horn County | MT | 2,535 |
| 13 | Lincoln County | MT | 2,391 |
| 14 | Roosevelt County | MT | 2,353 |
| 15 | Jefferson County | MT | 1,872 |
| 16 | Richland County | MT | 1,845 |
| 17 | Park County | MT | 1,656 |
| 18 | Fergus County | MT | 1,605 |
| 19 | Custer County | MT | 1,560 |
| 20 | Rosebud County | MT | 1,463 |
| 21 | Stillwater County | MT | 1,336 |
| 22 | Blaine County | MT | 1,323 |
| 23 | Sanders County | MT | 1,321 |
| 24 | Carbon County | MT | 1,301 |
| 25 | Beaverhead County | MT | 1,182 |
| 26 | Dawson County | MT | 1,182 |
| 27 | Valley County | MT | 1,115 |
| 28 | Teton County | MT | 1,037 |
| 29 | Deer Lodge County | MT | 1,032 |