Below is a list of Niagara WI zip codes. For your research we have also included Niagara Area Code, Time Zone, UTC and the local Marinette County FIPS Code. Each Niagara Wisconsin zip code has a center Longitude / Latitude point (the Niagara center is -88.009002685547 / 45.779998779297). For your convenience we have also indicated if that zip code in Niagara observes Daylight Savings time.