Below is a list of Frontenac MN zip codes. For your research we have also included Frontenac Area Code, Time Zone, UTC and the local Goodhue County FIPS Code. Each Frontenac Minnesota zip code has a center Longitude / Latitude point (the Frontenac center is -92.356796264648 / 44.511001586914). For your convenience we have also indicated if that zip code in Frontenac observes Daylight Savings time.