Chatham is a village in Rock River Township of Alger County in the U.S. state of Michigan. The population was 220 at the 2010 census. The village is at 46°20′52″N 86°55′44″W on M-94 and is considered a bedroom community to Marquette, Munising, and Escanaba.It was named after Chatham, Ontario, Canada, the town where the lumber company Sutherland Innis was headquartered.