2020 census
As of the 2020 United States census, there were 36,967 people, 16,551 households, and 10,295 families residing in the parish.
2010 census
As of the census of 2010 there were 52,903 people, 20,500 households, and 12,589 families residing in the parish. The population density was 92 people per square mile (27/km2). There were 18,991 housing units at an average density of 32 per square mile (12/km2). The racial makeup of the parish was 65.51% White, 32.83% Black or African American, 0.34% Native American, 0.19% Asian, 0.04% Pacific Islander, 0.22% from other races, and 0.86% from two or more races. 0.90% of the population were Hispanic or Latino of any race.
There were 16,501 households, of which 30.40% had children under the age of 18 living with them, 49.70% were married couples living together, 16.30% had a female householder with no husband present, and 29.90% were non-families. 27.00% of all households were made up of individuals, and 12.90% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 2.99.
In the parish the population was spread out, with 25.60% under the age of 18, 8.60% from 18 to 24, 26.00% from 25 to 44, 23.60% from 45 to 64, and 16.30% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 91.80 males. For every 100 females age 18 and over, there were 88.20 males.
The median income for a household in the parish was $28,408, and the median income for a family was $35,119. Males had a median income of $30,343 versus $20,907 for females. The per capita income for the parish was $15,203. About 15.30% of families and 20.20% of the population were below the poverty line, including 29.60% of those under age 18 and 16.10% of those age 65 or over.
Education
The elected Webster Parish School Board operates local public schools.
It is in the service area of Bossier Parish Community College.
National Guard
The 39th MP Company of the 773rd MP Battalion and the 1083rd Transportation Company of the 165th CSS (Combat Service Support) Battalion reside at Camp Minden west of Minden, formerly the Louisiana Army Ammunition Plant. Both of these battalions are part of the 139TH RSG (Regional Support Group).
Communities
thumb|200px|right|Map of Webster Parish, Louisiana With Municipal Labels
Cities
Minden (parish seat and largest municipality)
Springhill
Towns
Cotton Valley
Cullen
Sarepta
Sibley
Villages
Dixie Inn
Doyline
Dubberly
Heflin
Shongaloo
Unincorporated communities
Midway
Yellow Pine
Notable people
Alan Bean, astronaut, fourth person to walk on the Moon
"Sweet Lou" Dunbar, basketball player, 27-year player for the Harlem Globetrotters
Gene Austin, crooner, singer of "My Blue Heaven," the best-selling American single until 1942
Marshall H. Twitchell, Reconstruction official, victim of assassination attempt
John Cecil Jones, World War II veteran and lynching victim
Countess Leon, co-founder and leader of the utopian Germantown colony
John L. Nelson, jazz musician under the name Prince Rogers, father of musician Prince
Charlie Hennigan, AFL All-Star wide receiver
James Burton, guitarist, member of the Rock and Roll Hall of Fame
Roger Carr, Pro Bowl NFL wide receiver
Percy Mayfield, R&B singer
John David Crow, American football player, coach, and college athletics administrator
John T. Watkins, eight-term member of the U.S. House of Representatives
