Dayton city, Ohio
Official LSAD Designation: Dayton city • Census GEOID: 3921000
• Greene County / Montgomery County
Demographics & Population Profile
Population and demographics for Dayton city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 136,688 | — | 2025 | Census |
| Median Age | 34.1 yrs | ±1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 58,477 | ±1,345 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).