San Luis Obispo County California is covered by a total of 38 ZIP Codes. There are 5 ZIP Codes in San Luis Obispo County that extend into adjacent counties (Kern County, Monterey County, Santa Barbara County, and Ventura County). Of the ZIP codes within or partially within San Luis Obispo County there are 23 Standard ZIP Codes, 2 Unique ZIP Codes and 12 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 San Luis Obispo County and can be turned on and off. Each type of postal code can also be turned on and off.