Duncannon zipcode
| City | Duncannon |
| ZIP Code | 17020 |
| Type | Standard |
| State Code | PA |
| State | Pennsylvania |
ZIP code of Duncannon is 17020. This place is located in Pennsylvania state in US. To send any postal service to Duncannon, you must use 17020 zipcode.
You should avoid following 5 city names of Pennsylvania to be used with the ZIP code 17020.
- Cove, PA
- Dellville, PA
- Perdix, PA
- Watts, PA
- Wheatfield, PA