Duncannon borough, Pennsylvania
Official LSAD Designation: Duncannon borough • Census GEOID: 4220240
• Perry County
Demographics & Population Profile
Population and demographics for Duncannon borough.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 1,465 | — | 2025 | Census |
| Median Age | 43.5 yrs | ±5.3 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 639 | ±89 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).