Below is a list of Manson IA zip codes. For your research we have also included Manson Area Code, Time Zone, UTC and the local Calhoun County FIPS Code. Each Manson Iowa zip code has a center Longitude / Latitude point (the Manson center is -94.540199279785 / 42.528400421143). For your convenience we have also indicated if that zip code in Manson observes Daylight Savings time.