Richmond is a town in Sagadahoc County, Maine, United States. The population was 3,298 at the 2000 census. It is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area.
Richmond is the departure point for state boat service to Swan Island, site of the Steve Powell Refuge and Wildlife Management Area.
The tract of land which comprises Richmond and Gardiner was purchased in 1649 from the Abenaki Indians by Christopher Lawson. In 1719, Fort Richmond was built by Massachusetts on the western bank of the Kennebec River at what is today Richmond village. Named for Ludovic Stewart, 1st Duke of Richmond, the fort included a blockhouse, trading post, chapel, officers' and soldiers' quarters, all surrounded by a palisade.