Below is a list of Avoca WI zip codes. For your research we have also included Avoca Area Code, Time Zone, UTC and the local Iowa County FIPS Code. Each Avoca Wisconsin zip code has a center Longitude / Latitude point (the Avoca center is -90.325996398926 / 43.181999206543). For your convenience we have also indicated if that zip code in Avoca observes Daylight Savings time.