Below is a list of Grand Blanc MI zip codes. For your research we have also included Grand Blanc Area Code, Time Zone, UTC and the local Genesee County FIPS Code. Each Grand Blanc Michigan zip code has a center Longitude / Latitude point (the Grand Blanc center is -83.619201660156 / 42.924999237061). For your convenience we have also indicated if that zip code in Grand Blanc observes Daylight Savings time.