Below is a list of Greendale WI zip codes. For your research we have also included Greendale Area Code, Time Zone, UTC and the local Milwaukee County FIPS Code. Each Greendale Wisconsin zip code has a center Longitude / Latitude point (the Greendale center is -88.002899169922 / 42.935501098633). For your convenience we have also indicated if that zip code in Greendale observes Daylight Savings time.