Below is a list of Custer MI zip codes. For your research we have also included Custer Area Code, Time Zone, UTC and the local Mason County FIPS Code. Each Custer Michigan zip code has a center Longitude / Latitude point (the Custer center is -86.218597412109 / 43.954700469971). For your convenience we have also indicated if that zip code in Custer observes Daylight Savings time.