Laurium is a village in Calumet Township, Houghton County in the U.S. state of Michigan, in the center of the Keweenaw Peninsula. The population was 1,977 at the 2010 census. The village is mostly surrounded by Calumet Township, with a small portion bordering Schoolcraft Township on the east. The portion of Calumet Township south of Laurium is considered part of the Florida unincorporated community.