| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 17810 | Allenwood | Lycoming County | Standard |
| 17829 | Hartleton | Union County | PO Box |
| 17835 | Laurelton | Union County | PO Box |
| 17837 | Lewisburg | Union County | Standard |
| 17844 | Mifflinburg | Union County | Standard |
| 17845 | Millmont | Union County | Standard |
| 17847 | Milton | Northumberland County | Standard |
| 17855 | New Berlin | Union County | Standard |
| 17856 | New Columbia | Union County | Standard |
| 17870 | Selinsgrove | Snyder County | Standard |
| 17880 | Swengel | Union County | PO Box |
| 17885 | Weikert | Union County | PO Box |
| 17886 | West Milton | Union County | Standard |
| 17887 | White Deer | Union County | PO Box |
| 17889 | Winfield | Union County | Standard |