Below is a list of Grimes IA zip codes. For your research we have also included Grimes Area Code, Time Zone, UTC and the local Polk County FIPS Code. Each Grimes Iowa zip code has a center Longitude / Latitude point (the Grimes center is -93.794403076172 / 41.658500671387). For your convenience we have also indicated if that zip code in Grimes observes Daylight Savings time.