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Fremont County, Idaho Zip Codes
Zip Code
City
Population
83445
Saint Anthony
7,213
83420
Ashton
2,737
83429
Island Park
643
83421
Chester
379
83438
Parker
373
83433
Macks Inn
29
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.