Below is a list of Dewitt MI zip codes. For your research we have also included Dewitt Area Code, Time Zone, UTC and the local Clinton County FIPS Code. Each Dewitt Michigan zip code has a center Longitude / Latitude point (the Dewitt center is -84.57250213623 / 42.836700439453). For your convenience we have also indicated if that zip code in Dewitt observes Daylight Savings time.