Poweshiek County, Iowa Zip Codes

Zip Code	City	Population
50112	Grinnell	11,827
52211	Brooklyn	2,638
50171	Montezuma	2,440
52222	Deep River	731
50157	Malcom	705
50242	Searsboro	478
52221	Guernsey	359
52232	Hartwick	306

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