Mercer County Pennsylvania is covered by a total of 26 ZIP Codes. There are 11 ZIP Codes in Mercer County that extend into adjacent counties (Butler County, Crawford County, Lawrence County, Trumbull County, and Venango County). Of the ZIP codes within or partially within Mercer County there are 23 Standard ZIP Codes and 3 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Mercer County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Slippery Rock | Standard | |||
| Clark | PO Box | |||
| Clarks Mills | Standard | |||
| Farrell | Standard | |||
| Fredonia | Standard | |||
| Greenville | Standard | |||
| Grove City | Standard | |||
| Hadley | Standard | |||
| Jackson Center | Standard | |||
| Jamestown | Standard | |||
| Mercer | Standard | |||
| New Wilmington | Standard | |||
| Pulaski | Standard | |||
| Sandy Lake | Standard | |||
| Sharon | Standard | |||
| Hermitage | Standard | |||
| Sharpsville | Standard | |||
| Sheakleyville | PO Box | |||
| Stoneboro | Standard | |||
| Transfer | Standard | |||
| Volant | Standard | |||
| West Middlesex | Standard | |||
| Wheatland | PO Box | |||
| Carlton | Standard | |||
| Cochranton | Standard | |||
| Utica | Standard |