Data Last Updated: March 1, 2023

ZIP Codes for City of Grinnell, IA


    
        Need a ZIP Code for Grinnell, IA? Please enter an address.

Counties:	POWESHIEK, IA
Area Code(s):	641
Timezone(s):	Central (GMT -06:00)
City Population:	9,218 (More Details)
CBSA:	None
Congressional District(s):	01, 02
Land Area:	585 square miles (county)
Water Area:	1 square miles (county)

1 ZIP Code

Grinnell, IA ZIP Code Boundaries

Download ZIP Code Database

Load City Map

Grinnell, IA Covers 1 ZIP Code

ZIP Code	Type	Population	% of Population	Aliases
50112	Standard	11,536	100.00%	NEWBURG, OAKLAND ACRES

Grinnell, IA Demographic Information *

Total population**	9,218
Male population	4,361
Female population	4,857
Median age (years)	35.6
White Population	8,468
Black Population	182
Indian Population	30
Asian Population	246
Hawaiian Population	21
Hispanic Population	292
Median age (Male)	32.9
Median age (Female)	38.1
Total households	3,567
Family households (families)	2,026
Average household size	2.16
Average family size	2.82
Total housing units	3,844

* Demographic data is based on 2010 Census for the City of GRINNELL.
** City and ZIP Code Population will not be equal due to differences in their geographies.

References

U.S. Postal Service [Last Updated: 2/1/2023], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 2/1/2023], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov/
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010], https://www.census.gov