2020 census
As of the 2020 United States census, there were 7,620 people, 3,372 households, and 1,984 families residing in the parish.
2010 census
As of the 2010 United States Census, there were 9,091 people living in the parish. 59.0% were White, 39.5% Black or African American, 0.4% Native American, 0.1% Asian, 0.3% of some other race and 0.6% of two or more races. 1.1% were Hispanic or Latino (of any race).
2000 census
As of the census of 2000, there were 9,622 people, 3,414 households, and 2,526 families living in the parish. The population density was 25 people per square mile (10/km2). There were 3,988 housing units at an average density of 10 per square mile (4/km2). The racial makeup of the parish was 57.87% White, 40.91% Black or African American, 0.28% Native American, 0.09% Asian, 0.02% Pacific Islander, 0.22% from other races, and 0.61% from two or more races. 1.01% of the population were Hispanic or Latino of any race.
There were 3,414 households, out of which 35.70% had children under the age of 18 living with them, 51.50% were married couples living together, 18.60% had a female householder with no husband present, and 26.00% were non-families. Individuals made up 23.10% of all households, and 11.50% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.23.
In the parish the population was spread out, with 30.10% under the age of 18, 9.30% from 18 to 24, 24.80% from 25 to 44, 21.50% from 45 to 64, and 14.40% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 90.80 males. For every 100 females age 18 and over, there were 85.40 males.
The median income for a household in the parish was $23,153, and the median income for a family was $27,870. Males had a median income of $27,132 versus $17,760 for females. The per capita income for the parish was $12,119. About 26.00% of families and 29.90% of the population were below the poverty line, including 40.10% of those under age 18 and 18.90% of those age 65 or over.
Education
Public schools in Red River Parish are operated by the Red River Parish School District.
It is in the service area of Bossier Parish Community College.
Government
Red River Parish is governed by the Red River Parish Police Jury, which is divided into seven districts. District 1 is represented by William Brown, District 2 by Brandon Hillman, District 3 by Shawn Beard, District 4 by Jessie Davis, District 5 by John W. Moore, District 6 by Ben Taylor, and District 7 by Tray Murray. Red River Parish is represented in the Louisiana State Senate by Republican Louie Bernard of District 31. In the Louisiana House of Representatives, the parish is represented by Republican Michael Firment of District 22 and Democrat Kenny R. Cox of District 23. In the United States House of Representatives, it is represented by Republican Mike Johnson of Louisiana's 4th congressional district.
National Guard
Coushatta is the home of C Troop 2-108th Cavalry Squadron, a unit dating back to the Confederate Army during the Civil War under the nickname "the Wildbunch". This unit was formerly known as A Company 1-156 Armor Battalion and served recently in Iraq during 2004-5 under the 256th Infantry Brigade. This unit just returned from its second deployment to Iraq in 2010.
Communities
thumb|250px|Map of Red River Parish, Louisiana With Municipal Labels
Town
Coushatta (parish seat and largest municipality)
Villages
Edgefield (smallest municipality)
Hall Summit
Martin
Unincorporated communities
Crichton
East Point
Fairview Alpha
Grand Bayou
Hanna
Harmon
Lake End
Hospital
Christus Coushatta Health Care Center is the only hospital in Red River Parish.
Prison
Notable people
Henry Bethard, member of the Louisiana House of Representatives from Red River Parish, 1960–1964; former Coushatta town attorney
Edgar Cason, businessman and philanthropist
Jack Crichton, Texas oil and gas industrialist, was born in Crichton, in Red River Parish.
Andrew R. Johnson, former state senator (1916–1924) and mayor of Homer in Claiborne Parish, is interred in Red River Parish at Springville Cemetery in Coushatta.
James M. McLemore, cattleman in Alexandria, two-time state gubernatorial candidate; Red River Parish native interred at Springville Cemetery
Denver Moore, a long-time homeless ex-convict who gained fame when he and friend Ron Hall, a Dallas art dealer, co-wrote the story of their unlikely friendship in the best-seller and subsequent film, Same Kind of Different as Me
S. M. Morgan, Jr., member of the Louisiana House of Representatives from 1964 to 1968; the last House member to represent only Red River Parish
Benjamin Milam Teekell, state representative from Red River Parish from 1920 to 1928; member of the Red River Parish School Board prior to 1920
Lester Vetter, mayor of Coushatta from 1948 to 1952 and state representative from Red River Parish from 1952 until his death in office in 1960
Lloyd F. Wheat, attorney and member of the Louisiana State Senate from Red River and Natchitoches parishes from 1948 to 1952
W. Scott Wilkinson, Shreveport attorney and member of the Louisiana House of Representatives from 1920 to 1924
Politics