Poweshiek County, Iowa

Poweshiek County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF POWESHIEK GUS Population: 18,454 (2024) ID: 164270	County	Official County Government	Contact: CHAIRMAN PO BOX 57, MONTEZUMA IA 50171-0057
CITY OF GRINNELL GUS Population: 9,495 (2024) ID: 193322	Municipal	Municipal Government Within County	Contact: CITY CLERK FIN DIR 927 4TH AVE, GRINNELL IA 50112-2043
CITY OF BROOKLYN GUS Population: 1,474 (2024) ID: 126695	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 145, BROOKLYN IA 52211-0145
CITY OF MONTEZUMA GUS Population: 1,421 (2024) ID: 184219	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 314, MONTEZUMA IA 50171-0314
CITY OF MALCOM GUS Population: 257 (2024) ID: 164547	Municipal	Municipal Government Within County	Contact: CLERK PO BOX 66, MALCOM IA 50157-0066
CITY OF DEEP RIVER GUS Population: 243 (2024) ID: 104466	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 262, DEEP RIVER IA 52222-0262
CITY OF SEARSBORO GUS Population: 129 (2024) ID: 164548	Municipal	Municipal Government Within County	Contact: CITY CLERK 400 3RD ST, SEARSBORO IA 50242-7579
CITY OF HARTWICK GUS Population: 91 (2024) ID: 164546	Municipal	Municipal Government Within County	Contact: MAYOR 2387 310TH AVENUE, CHELSEA IA 52215
CITY OF GUERNSEY GUS Population: 59 (2024) ID: 164545	Municipal	Municipal Government Within County	Contact: MAYOR 601 CLEVELAND ST, GUERNSEY IA 52221-0054