Arapahoe County Colorado is covered by a total of 39 ZIP Codes. There are 15 ZIP Codes in Arapahoe County that extend into adjacent counties (Adams County, Denver County, Douglas County, Elbert County, and Jefferson County). Of the ZIP codes within or partially within Arapahoe County there are 28 Standard ZIP Codes, 2 Unique ZIP Codes and 9 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 Arapahoe County and can be turned on and off. Each type of postal code can also be turned on and off.