Allen County Indiana is covered by a total of 60 ZIP Codes. There are 11 ZIP Codes in Allen County that extend into adjacent counties (Adams County, DeKalb County, Huntington County, Noble County, Wells County, and Whitley County). Of the ZIP codes within or partially within Allen County there are 31 Standard ZIP Codes, 1 Unique ZIP Codes and 28 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 Allen County and can be turned on and off. Each type of postal code can also be turned on and off.