Below is a list of Sanilac County MI zip codes. For your research we have also included Sanilac County Area Code, Time Zone, UTC and the local County FIPS Code. Each Sanilac County Michigan zip code has a center Longitude / Latitude point (the Sanilac County center is -82.771896362305 / 43.43030166626). For your convenience we have also indicated if that zip code in Sanilac County observes Daylight Savings time.