Below is a list of Gresham WI zip codes. For your research we have also included Gresham Area Code, Time Zone, UTC and the local Shawano County FIPS Code. Each Gresham Wisconsin zip code has a center Longitude / Latitude point (the Gresham center is -88.786796569824 / 44.847301483154). For your convenience we have also indicated if that zip code in Gresham observes Daylight Savings time.