Below is a list of Platteville WI zip codes. For your research we have also included Platteville Area Code, Time Zone, UTC and the local Grant County FIPS Code. Each Platteville Wisconsin zip code has a center Longitude / Latitude point (the Platteville center is -90.47550201416 / 42.732299804688). For your convenience we have also indicated if that zip code in Platteville observes Daylight Savings time.