Green Castle city, Missouri
Official LSAD Designation: Green Castle city • Census GEOID: 2929116
• Sullivan County
Demographics & Population Profile
Population and demographics for Green Castle city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 211 | — | 2025 | Census |
| Median Age | 52.5 yrs | ±6.4 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 99 | ±30 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).