|West Baton Rouge Louisiana Cities/Towns - Addis, Brusly, Port Allen (Parish Seat)
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West Baton Rouge Parish (French: Paroisse de Baton Rouge Ouest) is a parish located in the U.S. state of Louisiana. 2016 U.S. Census population: 25,795. The parish seat is Port Allen.
West Baton Rouge Parish was formed in 1807; it was named Baton Rouge Parish until 1812.