City · Pennsylvania · United States
Duncannon, PA — ZIP codes
1 ZIP code · Perry County
- City
- Duncannon
- County
- Perry
- State
- Pennsylvania
- Country
- United States
- Postal code
- 17020Single source
- Coordinates
- 40.4087, -77.0473 View on OpenStreetMap
- Area codes
- 717, 223
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 17020 | Duncannon | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Last generated : 2026-08-21. Report an error.