Franklin County ZIP Codes

List of ZIP Codes in Franklin County

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

About Franklin County ZIP Codes

Franklin County in Idaho (ID) is served by approximately 6 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 14,715 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 Franklin County are located in cities such as Preston, Weston, Franklin, Clifton, Dayton. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Franklin County, Idaho follow the America/Boise time zone.