Below is a list of Mequon WI zip codes. For your research we have also included Mequon Area Code, Time Zone, UTC and the local Ozaukee County FIPS Code. Each Mequon Wisconsin zip code has a center Longitude / Latitude point (the Mequon center is -88.033401489258 / 43.236000061035). For your convenience we have also indicated if that zip code in Mequon observes Daylight Savings time.