Below is a list of Marquette IA zip codes. For your research we have also included Marquette Area Code, Time Zone, UTC and the local Clayton County FIPS Code. Each Marquette Iowa zip code has a center Longitude / Latitude point (the Marquette center is -91.186401367188 / 43.044300079346). For your convenience we have also indicated if that zip code in Marquette observes Daylight Savings time.