2 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Philipsburg | 1 | 950 | 838 | 2.04% | 1,118 | 1 | Town |
| Drummond | 2 | 305 | 271 | 2.01% | 563 | 1 | Town |
Philipsburg is the largest city in Granite County, with a population of 950.
Drummond is the smallest city in Granite County, with a population of 305.
There are 2 cities in Granite County, Montana.