Below is a list of Clermont IA zip codes. For your research we have also included Clermont Area Code, Time Zone, UTC and the local Fayette County FIPS Code. Each Clermont Iowa zip code has a center Longitude / Latitude point (the Clermont center is -91.656898498535 / 42.999198913574). For your convenience we have also indicated if that zip code in Clermont observes Daylight Savings time.