Monument city, Oregon
Official LSAD Designation: Monument city • Census GEOID: 4149750
• Grant County
Demographics & Population Profile
Population and demographics for Monument city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 112 | — | 2025 | Census |
| Median Age | 73.9 yrs | ±19.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 139 | ±57 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).