Below is a list of Port Washington WI zip codes. For your research we have also included Port Washington Area Code, Time Zone, UTC and the local Ozaukee County FIPS Code. Each Port Washington Wisconsin zip code has a center Longitude / Latitude point (the Port Washington center is -87.881103515625 / 43.387001037598). For your convenience we have also indicated if that zip code in Port Washington observes Daylight Savings time.