Below is a list of Union Center WI zip codes. For your research we have also included Union Center Area Code, Time Zone, UTC and the local Juneau County FIPS Code. Each Union Center Wisconsin zip code has a center Longitude / Latitude point (the Union Center center is -90.265998840332 / 43.680999755859). For your convenience we have also indicated if that zip code in Union Center observes Daylight Savings time.