Carsonville is a village in Sanilac County of the U.S. state of Michigan. The population was 527 at the 2010 census. The village is situated at 43°25′37″N 82°40′17″W on the boundary between Bridgehampton Township and Washington Township, with about half the village in each. The village began with a store built in 1853 operated by Silas C. Hall, who also became the first postmaster in 1857. The place was initially called Hall's Corners.