According to theU.S. Census Bureau, the county has a total area of 585 square miles (1,520 km2), of which 583 square miles (1,510 km2) is land and 2.5 square miles (6.5 km2) (0.4%) is water.[5]
As of the2020 census, the county had a population of 21,275. The median age was 38.5 years. 25.5% of residents were under the age of 18 and 17.1% of residents were 65 years of age or older. For every 100 females there were 95.4 males, and for every 100 females age 18 and over there were 93.4 males age 18 and over.[12][13]
<0.1% of residents lived in urban areas, while 100.0% lived in rural areas.[14]
There were 8,080 households in the county, of which 34.2% had children under the age of 18 living in them. Of all households, 42.0% were married-couple households, 18.8% were households with a male householder and no spouse or partner present, and 33.5% were households with a female householder and no spouse or partner present. About 27.7% of all households were made up of individuals and 12.8% had someone living alone who was 65 years of age or older.[12]
There were 8,979 housing units, of which 10.0% were vacant. Among occupied housing units, 74.4% were owner-occupied and 25.6% were renter-occupied. The homeowner vacancy rate was 1.1% and the rental vacancy rate was 6.6%.[12]
As of thecensus[15] of 2000, there were 20,940 people, 7,611 households, and 5,563 families living in the county. Thepopulation density was 36 people per square mile (14 people/km2). There were 8,585 housing units at an average density of 15 units per square mile (5.8 units/km2). The racial makeup of the county was 56.14%White, 37.42%Black orAfrican American, 4.56%Native American, 0.15%Asian, 0.03%Pacific Islander, 1.14% fromother races, and 0.57% from two or more races. 2.10% of the population wereHispanic orLatino of any race.
There were 7,611 households, out of which 34.30% had children under the age of 18 living with them, 52.20% weremarried couples living together, 16.50% had a female householder with no husband present, and 26.90% were non-families. 24.30% of all households were made up of individuals, and 11.70% had someone living alone who was 65 years of age or older. The average household size was 2.65 and the average family size was 3.13. In the county, the population was spread out, with 26.90% under the age of 18, 10.10% from 18 to 24, 27.00% from 25 to 44, 21.70% from 45 to 64, and 14.30% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 98.00 males. For every 100 females age 18 and over, there were 94.20 males.
The median income for a household in the county was $27,055, and the median income for a family was $32,147. Males had a median income of $27,367 versus $18,307 for females. Theper capita income for the county was $13,365. About 18.10% of families and 23.30% of the population were below thepoverty line, including 31.90% of those under age 18 and 23.90% of those age 65 or over.
By 2006, the Town of Walnut Grove annexed the land of the prison, resulting in an apparent increase in population, which was chiefly associated with prisoners.[18] MTC was repeatedly cited for problems with poor treatment of prisoners, and abuses within the facility. The state closed it in 2016.[19]
Since 1984, Leake County has supported Republican candidates at the presidential level; however Democrats usually gain at least 40% of the vote. Since then, in only 1984, 2004, and 2024 has the Republican candidate gained over 60% of the county's vote (and the Democrat under 40%).
United States presidential election results for Leake County, Mississippi[24]
^"Walnut GroveArchived 2016-03-04 at theWayback Machine."First Impressions.Mississippi State University, February 2008. 0 (3/21). Retrieved on August 14, 2010. "Looking at the MDA profile, the population growth is impressive (year 2000 – 488, year 2006 – 1,424). However, we learned that most of this population growth has been due to the location and annexation of the Walnut Grove Youth Correctional Facility."
^"Home". Red Water Elementary School. RetrievedAugust 6, 2022.107 Braves Boulevard Carthage, MS 39051
^"Home". Red Water Elementary School. RetrievedAugust 6, 2022.538 Highway 487 East Carthage, MS 39051
^"Leake Academy".National Center for Educational Statistics. US Department of Education. Archived fromthe original on August 3, 2020. RetrievedJune 15, 2019.