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Calhoun County, Iowa Zip Codes
Zip Code
City
Population
50579
Rockwell City
3,153
50563
Manson
2,468
51449
Lake City
2,020
50575
Pomeroy
649
50561
Lytton
592
50538
Farnhamville
562
51453
Lohrville
537
50586
Somers
235
50552
Knierim
75
50551
Jolley
45
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.