Below is a list of Kewaskum WI zip codes. For your research we have also included Kewaskum Area Code, Time Zone, UTC and the local Washington County FIPS Code. Each Kewaskum Wisconsin zip code has a center Longitude / Latitude point (the Kewaskum center is -88.228897094727 / 43.520999908447). For your convenience we have also indicated if that zip code in Kewaskum observes Daylight Savings time.