Below is a list of Hillsdale MI zip codes. For your research we have also included Hillsdale Area Code, Time Zone, UTC and the local Hillsdale County FIPS Code. Each Hillsdale Michigan zip code has a center Longitude / Latitude point (the Hillsdale center is -84.635299682617 / 41.924900054932). For your convenience we have also indicated if that zip code in Hillsdale observes Daylight Savings time.