Below is a list of Onsted MI zip codes. For your research we have also included Onsted Area Code, Time Zone, UTC and the local Lenawee County FIPS Code. Each Onsted Michigan zip code has a center Longitude / Latitude point (the Onsted center is -84.189598083496 / 42.00719833374). For your convenience we have also indicated if that zip code in Onsted observes Daylight Savings time.