St. Marie CDP, Montana
Official LSAD Designation: St. Marie CDP • Census GEOID: 3065400
• Valley County
Demographics & Population Profile
Population and demographics for St. Marie CDP.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population | 306 | ±147 | 2020-2024 | Census ACS 5-Year 2024 |
| Median Age | 37.9 yrs | ±2.9 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 92 | ±50 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).