Smithville city, Missouri
Official LSAD Designation: Smithville city • Census GEOID: 2968420
• Clay County / Platte County
Demographics & Population Profile
Population and demographics for Smithville city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 11,160 | — | 2025 | Census |
| Median Age | 37.4 yrs | ±2.2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 4,075 | ±216 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).