Below is a list of Guthrie County IA zip codes. For your research we have also included Guthrie County Area Code, Time Zone, UTC and the local County FIPS Code. Each Guthrie County Iowa zip code has a center Longitude / Latitude point (the Guthrie County center is -94.415397644043 / 41.689098358154). For your convenience we have also indicated if that zip code in Guthrie County observes Daylight Savings time.