Below is a list of Riceville IA zip codes. For your research we have also included Riceville Area Code, Time Zone, UTC and the local Howard County FIPS Code. Each Riceville Iowa zip code has a center Longitude / Latitude point (the Riceville center is -92.55419921875 / 43.363800048828). For your convenience we have also indicated if that zip code in Riceville observes Daylight Savings time.