Richwood is a town in Ouachita Parish, Louisiana, United States. The Town was incorporated December 31, 1974, under the provision of Louisiana Revised Statute 33:52. The Town operates under a form of government consisting of an elected mayor and a board of alder persons, which has five elected members. The Town provides garbage collection, street maintenance, drainage maintenance, and other health and welfare services, in addition to the administrative services provided to its residents.