There are 7 zip codes in Jefferson County, Idaho. The most populated is 83442, located in Rigby. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
8344224,445Rigby
834341,695Menan
834501,131Terreton
834441,083Roberts
83431879Lewisville
83425740Hamer
83435503Monteview

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