Below is a list of Gaastra MI zip codes. For your research we have also included Gaastra Area Code, Time Zone, UTC and the local Iron County FIPS Code. Each Gaastra Michigan zip code has a center Longitude / Latitude point (the Gaastra center is -88.601997375488 / 46.059299468994). For your convenience we have also indicated if that zip code in Gaastra observes Daylight Savings time.