Below is a list of Alpena MI zip codes. For your research we have also included Alpena Area Code, Time Zone, UTC and the local Alpena County FIPS Code. Each Alpena Michigan zip code has a center Longitude / Latitude point (the Alpena center is -83.43620300293 / 45.073101043701). For your convenience we have also indicated if that zip code in Alpena observes Daylight Savings time.