Below is a list of Clarence IA zip codes. For your research we have also included Clarence Area Code, Time Zone, UTC and the local Cedar County FIPS Code. Each Clarence Iowa zip code has a center Longitude / Latitude point (the Clarence center is -91.054801940918 / 41.888599395752). For your convenience we have also indicated if that zip code in Clarence observes Daylight Savings time.