Riverside County California is covered by a total of 102 ZIP Codes. There are 7 ZIP Codes in Riverside County that extend into adjacent counties (Imperial County, San Bernardino County, and San Diego County). Of the ZIP codes within or partially within Riverside County there are 71 Standard ZIP Codes, 3 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 Riverside County and can be turned on and off. Each type of postal code can also be turned on and off.