Below is a list of Grinnell KS zip codes. For your research we have also included Grinnell Area Code, Time Zone, UTC and the local Gove County FIPS Code. Each Grinnell Kansas zip code has a center Longitude / Latitude point (the Grinnell center is -100.63300323486 / 39.126201629639). For your convenience we have also indicated if that zip code in Grinnell observes Daylight Savings time.