Below is a list of Ixonia WI zip codes. For your research we have also included Ixonia Area Code, Time Zone, UTC and the local Jefferson County FIPS Code. Each Ixonia Wisconsin zip code has a center Longitude / Latitude point (the Ixonia center is -88.592597961426 / 43.147899627686). For your convenience we have also indicated if that zip code in Ixonia observes Daylight Savings time.