Below is a list of Union Pier MI zip codes. For your research we have also included Union Pier Area Code, Time Zone, UTC and the local Berrien County FIPS Code. Each Union Pier Michigan zip code has a center Longitude / Latitude point (the Union Pier center is -86.692199707031 / 41.828098297119). For your convenience we have also indicated if that zip code in Union Pier observes Daylight Savings time.