Below is a list of Montello WI zip codes. For your research we have also included Montello Area Code, Time Zone, UTC and the local Marquette County FIPS Code. Each Montello Wisconsin zip code has a center Longitude / Latitude point (the Montello center is -89.333099365234 / 43.79349899292). For your convenience we have also indicated if that zip code in Montello observes Daylight Savings time.