Duncannon, PA
ZIP Codes in Duncannon, Pennsylvania
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 17020 | 8,642 | 40.4142, -77.0415 |
Duncannon has 1 ZIP code
ZIP Codes in Duncannon, Pennsylvania
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 17020 | 8,642 | 40.4142, -77.0415 |