Below is a list of Porterfield WI zip codes. For your research we have also included Porterfield Area Code, Time Zone, UTC and the local Marinette County FIPS Code. Each Porterfield Wisconsin zip code has a center Longitude / Latitude point (the Porterfield center is -87.794898986816 / 45.154800415039). For your convenience we have also indicated if that zip code in Porterfield observes Daylight Savings time.