Middletown borough, Pennsylvania
Official LSAD Designation: Middletown borough • Census GEOID: 4249128
• Dauphin County
Demographics & Population Profile
Population and demographics for Middletown borough.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 9,776 | — | 2025 | Census |
| Median Age | 33.8 yrs | ±4.4 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 4,674 | ±242 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).