Calcasieu Parish Louisiana Cities/Towns – Carlyss, DeQuincy, Iowa, Lake Charles (Parish Seat), Moss Bluff, Prien, Sulphur, Vinton, Westlake

Calcasieu Parish[p] (French: Paroisse de Calcasieu) is a parish located in the U.S. state of Louisiana. 2016 U.S. census population: 200,601. The parish seat is Lake Charles.

History
The name Calcasieu comes from the Atakapan word, “quelqueshue”, meaning “crying eagle”. It was originally the name of an Atakapa chief, but became the name given to what was formerly the Rio Hondo River (Rio Stondo or “Deep River”), now the Calcasieu River. The parish then inherited this name.