Below is a list of Decatur MI zip codes. For your research we have also included Decatur Area Code, Time Zone, UTC and the local Van Buren County FIPS Code. Each Decatur Michigan zip code has a center Longitude / Latitude point (the Decatur center is -85.974296569824 / 42.108699798584). For your convenience we have also indicated if that zip code in Decatur observes Daylight Savings time.