Below is a list of Winterset IA zip codes. For your research we have also included Winterset Area Code, Time Zone, UTC and the local Madison County FIPS Code. Each Winterset Iowa zip code has a center Longitude / Latitude point (the Winterset center is -94.013397216797 / 41.335498809814). For your convenience we have also indicated if that zip code in Winterset observes Daylight Savings time.