Businesses and Places in Alpena, Michigan

Alpena is a city in the U.S. state of Michigan and the county seat of Alpena County. It is considered to be part of northern Michigan. The Thunder Bay National Marine Sanctuary is located in the city. The population was 10,483 at the 2010 census. The population swells with a large number of visitors in the summer.
Phone Area Codes in Alpena, MI: 989

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