Harris County Texas is covered by a total of 239 ZIP Codes. There are 17 ZIP Codes in Harris County that extend into adjacent counties (Brazoria County, Chambers County, Fort Bend County, Galveston County, Grimes County, Liberty County, Montgomery County, and Waller County). Of the ZIP codes within or partially within Harris County there are 143 Standard ZIP Codes, 6 Unique ZIP Codes and 90 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 Harris County and can be turned on and off. Each type of postal code can also be turned on and off.