Bienville Parish is a parish located in the northwestern portion of the U.S. state of Louisiana. At the 2020 census, the population was 12,981. The parish seat and most populous municipality is Arcadia.
Country: United States
State: Louisiana
Region: North Louisiana
Founded: March 14, 1848
Named for: Jean-Baptiste Le Moyne de Bienville
Parish seat: Arcadia
Largest municipality: Bienville (area) · Arcadia (population)