There are 6 zip codes in Fremont County, Idaho. The most populated is 83445, located in Saint Anthony. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
834457,213Saint Anthony
834202,737Ashton
83429643Island Park
83421379Chester
83438373Parker
8343329Macks Inn

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