Below is a list of Saint Charles MI zip codes. For your research we have also included Saint Charles Area Code, Time Zone, UTC and the local Saginaw County FIPS Code. Each Saint Charles Michigan zip code has a center Longitude / Latitude point (the Saint Charles center is -84.150802612305 / 43.303600311279). For your convenience we have also indicated if that zip code in Saint Charles observes Daylight Savings time.