Below is a list of Muskegon County MI zip codes. For your research we have also included Muskegon County Area Code, Time Zone, UTC and the local County FIPS Code. Each Muskegon County Michigan zip code has a center Longitude / Latitude point (the Muskegon County center is -86.185897827148 / 43.281700134277). For your convenience we have also indicated if that zip code in Muskegon County observes Daylight Savings time.