Genesee County Michigan is covered by a total of 42 ZIP Codes. There are 15 ZIP Codes in Genesee County that extend into adjacent counties (Lapeer County, Livingston County, Oakland County, Saginaw County, Shiawassee County, and Tuscola County). Of the ZIP codes within or partially within Genesee County there are 29 Standard ZIP Codes, 8 Unique ZIP Codes and 5 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 Genesee County and can be turned on and off. Each type of postal code can also be turned on and off.