Below is a list of Green Lake County WI zip codes. For your research we have also included Green Lake County Area Code, Time Zone, UTC and the local County FIPS Code. Each Green Lake County Wisconsin zip code has a center Longitude / Latitude point (the Green Lake County center is -89.071899414062 / 43.78099822998). For your convenience we have also indicated if that zip code in Green Lake County observes Daylight Savings time.