| Name | Musselshell County |
| State | Montana |
| FIPS Code | 30065 |
| County Seat | Roundup |
| Timezone | Mountain Standard Time (MST) |
| Population (2022) | 4,597 |
| Population Growth Rate(2000-2022) | 4.23% |
| Majority Ethnicity | White 97.38% |
| Public School Majority Ethnicity | White 88% |
| Partisan Voting Index | Strongly Republican:+33 |
| Unemployment Rate (January 2025) | 2.6% |
| Area Code(s) | 406 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 97.38% |
| African American | 0% |
| Hispanic | 2.62% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 88.47% |
| African American | 0.15% |
| Hispanic | 5.01% |
| Asian | 0.15% |
| Native American | 2.28% |
| Hawaiin/Pacific Islander | 0% |