Washington County ZIP Codes

List of ZIP Codes in Washington County

The following table lists ZIP Codes associated with Washington County, Kentucky, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude City Population Density
1 40040 37.77433 -85.05727 Mackville 703 15.1
2 40061 37.70954 -85.26353 Saint Catharine 205 645.6
3 40069 37.71627 -85.21764 Springfield 7,802 16.0
4 40078 37.84272 -85.14902 Willisburg 2,777 17.5


About Washington County ZIP Codes

Washington County in Kentucky (KY) is served by approximately 4 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 11,487 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in Washington County are located in cities such as Springfield, Willisburg, Mackville, Saint Catharine. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Washington County, Kentucky follow the America/New_York time zone.