Allegheny County Pennsylvania is covered by a total of 153 ZIP Codes. There are 13 ZIP Codes in Allegheny County that extend into adjacent counties (Beaver County, Butler County, Washington County, and Westmoreland County). Of the ZIP codes within or partially within Allegheny County there are 110 Standard ZIP Codes, 23 Unique ZIP Codes and 20 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 Allegheny County and can be turned on and off. Each type of postal code can also be turned on and off.