Miamisburg city, Ohio
Official LSAD Designation: Miamisburg city • Census GEOID: 3949434
• Montgomery County
Demographics & Population Profile
Population and demographics for Miamisburg city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 20,414 | — | 2025 | Census |
| Median Age | 40 yrs | ±3.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 7,656 | ±550 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).