Hamilton County Ohio is covered by a total of 79 ZIP Codes. There are 7 ZIP Codes in Hamilton County that extend into adjacent counties (Boone County, Butler County, Clermont County, and Warren County). Of the ZIP codes within or partially within Hamilton County there are 54 Standard ZIP Codes, 14 Unique ZIP Codes and 11 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 Hamilton County and can be turned on and off. Each type of postal code can also be turned on and off.