|Washington County, Mississippi|
Location in the U.S. state of Mississippi
Mississippi's location in the U.S.
|Named for||George Washington|
|• Total||761 sq mi (1,971 km2)|
|• Land||725 sq mi (1,878 km2)|
|• Water||36 sq mi (93 km2), 4.8%|
|• ( 2010)||51,137|
|• Density||71/sq mi (27/km2)|
|Time zone||Central: UTC−6/ −5|
Washington County is a county located in the U.S. state of Mississippi. As of the 2010 census, the population was 51,137.  Its county seat is Greenville.  The county is named in honor of the first President of the United States, George Washington.
Located in the Mississippi Delta, Washington County was first developed for cotton cultivation in the antebellum years. Most plantations were developed to have access to the rivers, which were the major transportation routes. Cotton was based on the labor of enslaved African Americans. Greenville was designated as the county seat, and its leading planters and professional men became influential in state affairs.
In the period from 1877 to 1950, Washington County had 12 documented lynchings of African Americans.  Most occurred around the turn of the 20th century, as part of white imposition of Jim Crow conditions and suppression of black voting.
- Bolivar County (north)
- Sunflower County (northeast)
- Humphreys County (east)
- Sharkey County (southeast)
- Issaquena County (south)
- Chicot County, Arkansas (west)
- Desha County, Arkansas (northwest)
- Holt Collier National Wildlife Refuge
- Theodore Roosevelt National Wildlife Refuge (part)
- Yazoo National Wildlife Refuge
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2013 
As of the 2010 United States Census, there were 51,137 people residing in the county. 71.3% were Black or African American, 27.0% White, 0.6% Asian, 0.1% Native American, 0.4% of some other race and 0.6% of two or more races. 1.0% were Hispanic or Latino (of any race).
As of the census  of 2000, there were 62,977 people, 22,158 households, and 15,931 families residing in the county. The population density was 87 people per square mile (34/km²). There were 24,381 housing units at an average density of 34 per square mile (13/km²). The racial makeup of the county was 69.57% Black or African American, 33.97% White, 0.09% Native American, 0.53% Asian, 0.02% Pacific Islander, 0.25% from other races, and 0.57% from two or more races. 0.84% of the population were Hispanic or Latino of any race.
Washington County by 2005 was 67.2% African-American in population. Latinos constituted 1.1% of the population in the county while non-Hispanic whites made up 31.7% of the population.
As of the census  of 2000, there were 22,158 households out of which 36.30% had children under the age of 18 living with them, 40.60% were married couples living together, 26.00% had a female householder with no husband present, and 28.10% were non-families. 24.60% of all households were made up of individuals and 10.00% had someone living alone who was 65 years of age or older. The average household size was 2.80 and the average family size was 3.35.
In the county, the population was spread out with 31.50% under the age of 18, 10.10% from 18 to 24, 26.50% from 25 to 44, 20.50% from 45 to 64, and 11.50% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 87.70 males. For every 100 females age 18 and over, there were 80.30 males.
The median income for a household in the county was $25,757, and the median income for a family was $30,324. Males had a median income of $28,266 versus $20,223 for females. The per capita income for the county was $13,430. About 24.90% of families and 29.20% of the population were below the poverty line, including 38.40% of those under age 18 and 24.60% of those age 65 or over.
Washington County's demographics are rooted in the region's mid-nineteenth-century ascendance in cotton production and, accordingly, importation of people as slaves. According to the historian Sven Beckert, the county had "more than ten slaves for every white inhabitant" in 1840, and "every white family in the county held on average more than eighty slaves" by 1850. 
- Public School Districts
- Private Schools
- "State & County QuickFacts". United States Census Bureau. Retrieved September 7, 2013.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- Lynching in America, 3rd edition, Supplement by County, p. 6
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on September 28, 2013. Retrieved November 8, 2014.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Retrieved November 8, 2014.
- "Historical Census Browser". University of Virginia Library. Retrieved November 8, 2014.
- "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved November 8, 2014.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved November 8, 2014.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- Beckert, Sven (2014). Empire of Cotton: a Global History. New York: Knopf.
- " Greenville city, Mississippi Archived 2008-05-10 at the Wayback Machine.." U.S. Census Bureau. Retrieved on July 15, 2011.
- " Profile of Pillow Academy 2010-2011 Archived 2001-12-01 at the Library of Congress Web Archives." Pillow Academy. Retrieved on March 25, 2012.
- Lynch, Adam (18 November 2009). "Ceara's Season". Jackson Free Press. Retrieved 19 August 2011.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 2018-03-04.
- Russell S. Hall, Princella W. Nowell, and Stacy Childress, Washington County, Mississippi. Charleston, SC: Arcadia Publishing, 2000.
- Bern Keating, A History of Washington County, Mississippi. Greenville, MS: Greenville Junior Auxiliary, 1976.
- John L. McCoy, Factors Associated with Level-of-Living in Washington County, Mississippi. US Department of Agriculture Technical Bulletin no. 1501. Washington, DC: US Dept. of Agriculture, Economic Research Service, 1974.
- William Bert Thompson, A History of the Greenville, Mississippi, Public Schools under the Administration of E.E. Bass, 1884-1932. MA thesis. University, MS: University of Mississippi, 1968.