Jefferson County Kentucky is covered by a total of 73 ZIP Codes. There are 6 ZIP Codes in Jefferson County that extend into adjacent counties (Bullitt County, Harrison County, Oldham County, Shelby County, and Spencer County). Of the ZIP codes within or partially within Jefferson County there are 36 Standard ZIP Codes, 12 Unique ZIP Codes and 25 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 Jefferson County and can be turned on and off. Each type of postal code can also be turned on and off.