Bienville Parish (French: Paroisse de Bienville) is a parish located in the northwestern portion of the U.S. state of Louisiana. As of the 2010 census, the population was 14,353. The parish seat is Arcadia.
According to the U.S. Census Bureau, the parish has a total area of 822 square miles (2,130 km), of which 811 square miles (2,100 km) is land and 11 square miles (28 km) (1.3%) is water. The highest natural point in Louisiana, Driskill Mountain (535 ft), is located in Bienville Parish. Driskill Mountain is 11 miles (18 km) south of Arcadia at Latitude 32 degree, 25 minutes North; Longitude 92 degree 54 minutes West.
Loggy Bayou flows south from Lake Bistineau and traverses Bienville Parish west of Ringgold before it enters Red River Parish and thereafter joins the Red River.
As of the census of 2000, there were 15,752 people, 6,108 households, and 4,214 families residing in the parish. The population density was 19 people per square mile (8/km²). There were 7,830 housing units at an average density of 10 per square mile (4/km²). The racial makeup of the parish was 54.92% White, 43.78% Black or African American, 0.27% Native American, 0.15% Asian, 0.32% from other races, and 0.55% from two or more races. 0.95% of the population were Hispanic or Latino of any race.
There were 6,108 households out of which 31.00% had children under the age of 18 living with them, 46.70% were married couples living together, 17.70% had a female householder with no husband present, and 31.00% were non-families. 28.80% of all households were made up of individuals and 14.10% had someone living alone who was 65 years of age or older. The average household size was 2.52 and the average family size was 3.09.
In the parish the population was spread out with 27.30% under the age of 18, 8.00% from 18 to 24, 24.60% from 25 to 44, 22.50% from 45 to 64, and 17.60% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 91.20 males. For every 100 females age 18 and over, there were 85.80 males.
The median income for a household in the parish was $23,663, and the median income for a family was $30,241. Males had a median income of $28,022 versus $18,682 for females. The per capita income for the parish was $12,471. About 21.80% of families and 26.10% of the population were below the poverty line, including 34.00% of those under age 18 and 23.20% of those age 65 or over.