There are 6 zip codes in Franklin County, Idaho. The most populated is 83263, located in Preston. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
832639,813Preston
832861,451Weston
832371,332Franklin
832281,101Clifton
83232473Dayton
83283206Thatcher
showing: 6 rows

Zip Codes in Franklin County, Idaho by Population (2024)