Alpha is a village in Iron County of the U.S. state of Michigan. The population was 145 at the 2010 census. The village is in Mastodon Township. The Alpha post office opened with the name Mastodon on October 1, 1883 and was discontinued on December 20, 1888. The office was reestablished as Alpha on December 15, 1913. The community incorporated as a village in 1914.