2020 census
As of the 2020 United States census, there were 227,742 people, 88,471 households, and 53,269 families residing in the county.
2010 census
As of the 2010 United States Census, there were 245,285 people living in the county. 69.1% were Black or African American, 28.4% White, 0.8% Asian, 0.2% Native American, 0.7% of some other race and 0.9% of two or more races. 1.5% were Hispanic or Latino (of any race).
2000 census
As of the census of 2000, there were 250,800 people, 91,030 households, and 62,355 families living in the county. The population density was 288 people per square mile (111/km2). There were 100,287 housing units at an average density of 115 per square mile (45/km2). The racial makeup of the county was 61.12% Black or African American, 37.31% White, 0.12% Native American, 0.60% Asian, 0.01% Pacific Islander, 0.20% from other races, and 0.63% from two or more races. 0.79% of the population were Hispanic or Latino of any race.
There were 91,030 households, out of which 34.40% had children under the age of 18 living with them, 41.10% were married couples living together, 22.70% had a female householder with no husband present, and 31.50% were non-families. Of all households, 26.70% were made up of individuals, and 8.70% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.22.
In the county, the population was spread out, with 27.90% under the age of 18, 12.10% from 18 to 24, 28.90% from 25 to 44, 20.10% from 45 to 64, and 11.00% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 88.80 males. For every 100 females age 18 and over, there were 83.50 males.
The median income for a household in the county was $33,991, and the median income for a family was $40,525. Males had a median income of $30,930 versus $24,593 for females. The per capita income for the county was $17,785. About 16.10% of families and 19.90% of the population were below the poverty line, including 28.60% of those under age 18 and 15.10% of those age 65 or over.
Hinds County has the thirteenth highest per capita income in the State of Mississippi.
Government
Hinds County is governed via a five-member board of supervisors, each elected from single-member districts. The county is led by a county administrator, who is appointed.
The Mississippi Department of Human Services (MDHS) has its headquarters in Jackson and in Hinds County. The Division of Youth Services operates the Oakley Training School (OTS) in an unincorporated area of Hinds County.
The Mississippi Department of Corrections has its headquarters in Jackson and in Hinds County. It operates the Jackson Probation & Parole Office in the city.
Education
thumb|right|350px|Public School Districts in Hinds County
Public school districts
Clinton Public School District
Hinds County School District (Raymond)
Jackson Public School District
Private schools
Clinton Christian Academy (Clinton)
Hillcrest Christian School (Jackson)
Jackson Academy (Jackson)
Mt. Salus Christian School (Clinton)
Rebul Academy (Learned)
Central Hinds Academy(Raymond)
Colleges and universities
Belhaven University (Jackson)
Hinds Community College (Raymond)
Jackson State University (Jackson)
Millsaps College (Jackson)
Mississippi College (Clinton)
Mississippi College School of Law (Jackson)
Reformed Theological Seminary (Jackson)
Tougaloo College (Tougaloo)
University of Mississippi Medical Center (Jackson)
Wesley Biblical Seminary (Jackson)
Public libraries
Jackson/Hinds Library System
Communities
Cities
Byram
Clinton
Jackson (county seat; partly in Madison and Rankin Counties)
Raymond (county seat)
Towns
Bolton
Edwards
Learned
Terry
Utica
Unincorporated communities
Brownsville
Cayuga
Cynthia
Dabney Crossroads
Midway
Oakley
Pocahontas
Notable people
Kate Stone (1841–1907), diarist
Charley Patton (1891–1934), blues musician
Henry Sloan (1870-1948), delta blues musician