Fremont County, Iowa Zip Codes

Zip Code	City	Population
51640	Hamburg	1,503
51653	Tabor	1,501
51652	Sidney	1,494
51639	Farragut	737
51649	Randolph	417
51654	Thurman	318
51650	Riverton	284
51648	Percival	271
51645	Imogene	247

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.