Below is a list of Gaines MI zip codes. For your research we have also included Gaines Area Code, Time Zone, UTC and the local Genesee County FIPS Code. Each Gaines Michigan zip code has a center Longitude / Latitude point (the Gaines center is -83.910499572754 / 42.871601104736). For your convenience we have also indicated if that zip code in Gaines observes Daylight Savings time.