Below is a list of Saginaw County MI zip codes. For your research we have also included Saginaw County Area Code, Time Zone, UTC and the local County FIPS Code. Each Saginaw County Michigan zip code has a center Longitude / Latitude point (the Saginaw County center is -84.012702941895 / 43.373401641846). For your convenience we have also indicated if that zip code in Saginaw County observes Daylight Savings time.