Below is a list of Old Mission MI zip codes. For your research we have also included Old Mission Area Code, Time Zone, UTC and the local Grand Traverse County FIPS Code. Each Old Mission Michigan zip code has a center Longitude / Latitude point (the Old Mission center is -85.485298156738 / 44.961700439453). For your convenience we have also indicated if that zip code in Old Mission observes Daylight Savings time.