Below is a list of Buena Vista MI zip codes. For your research we have also included Buena Vista Area Code, Time Zone, UTC and the local Saginaw County FIPS Code. Each Buena Vista Michigan zip code has a center Longitude / Latitude point (the Buena Vista center is -83.8863428 / 43.4508281). For your convenience we have also indicated if that zip code in Buena Vista observes Daylight Savings time.