Below is a list of Chickasaw County IA zip codes. For your research we have also included Chickasaw County Area Code, Time Zone, UTC and the local County FIPS Code. Each Chickasaw County Iowa zip code has a center Longitude / Latitude point (the Chickasaw County center is -92.346199035645 / 43.047298431396). For your convenience we have also indicated if that zip code in Chickasaw County observes Daylight Savings time.