Grinnell zip code

Zip code in Grinnell, IA

The location Grinnell belongs to Poweshiek County, state of Iowa. Grinnell has been assigned with the zip code 50112.

Grinnell is the official name of the location so if you want to use the US Postal Service you must use that name. You can also use any of the following names: Oakland Acres.

Zip code Type Population
50112 STANDARD 8,910