Below is a list of Calmar IA zip codes. For your research we have also included Calmar Area Code, Time Zone, UTC and the local Winneshiek County FIPS Code. Each Calmar Iowa zip code has a center Longitude / Latitude point (the Calmar center is -91.864601135254 / 43.18270111084). For your convenience we have also indicated if that zip code in Calmar observes Daylight Savings time.