Roundup city, Montana
Official LSAD Designation: Roundup city • Census GEOID: 3064525
• Musselshell County
Demographics & Population Profile
Population and demographics for Roundup city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 2,075 | — | 2025 | Census |
| Median Age | 42.4 yrs | ±6.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 861 | ±111 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).