| Name | Granite County |
| State | Montana |
| FIPS Code | 30039 |
| County Seat | Philipsburg |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2024) | 3,565 |
| Population Growth Rate(2020-2024) | 7.32% |
| Majority Ethnicity | White 94.35% |
| Public School Majority Ethnicity | White 91% |
| Partisan Voting Index | Strongly Republican:+21 |
| Unemployment Rate (May 2026) | 7.7% |
| Area Code(s) | 406 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 94.35% |
| African American | 0.74% |
| Hispanic | 1.96% |
| Asian | 0.65% |
| Native American | 2.26% |
| Hawaiin/Pacific Islander | 0.03% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 90.67% |
| African American | 0.26% |
| Hispanic | 4.92% |
| Asian | 0% |
| Native American | 0.78% |
| Hawaiin/Pacific Islander | 0% |