|Gregg County, Texas|
Location in the U.S. state of Texas
Texas's location in the U.S.
|Named for||Gen. John Gregg|
|• Total||276 sq mi (715 km2)|
|• Land||273 sq mi (707 km2)|
|• Water||2.5 sq mi (6 km2), 0.9%|
|• ( 2010)||121,730|
|• Density||445/sq mi (172/km2)|
|Time zone||Central: UTC−6/ −5|
Gregg County is a county located in the eastern part of the U.S. state of Texas. As of the 2010 census, its population was 121,730.  Its county seat is Longview.  The county is named after John Gregg, a Confederate general killed in action during the American Civil War. 
Gregg County is part of the Longview, TX Metropolitan Statistical Area as well as the Longview– Marshall, TX Combined Statistical Area. Discovery of oil near Kilgore, Texas in October 1920 was the beginning of an oil boom that attracted workers to the county and expanded the population by more than 500% by 1940, according to the census. By that time, the economy had stabilized but the East Texas Oil Field, extending in five counties, has continued to be important to the county and region's economy.
This area was among early sections settled by United States immigrants before Texas became an independent republic and, after 1848, a state of the United States. It was an area developed as cotton plantations dependent on slave labor of African Americans. Lumbering of the pine forests was also pursued, especially in the early years of clearing the land for cultivation.
Gregg County was organized in 1873 after the American Civil War from portions of existing counties. When the Texas State Legislature convened in January 1873, Democratic representative B. W. Brown of Upshur County introduced a bill to create a new county from parts of Harrison, Rusk, and Upshur counties. He was likely trying to break up the black majority that dominated county politics in Harrison County. Under Brown's proposal, the county was to be named Roanoke, and Longview was to be the county seat. The proposed name was later changed to honor Texas leader and Confederate General John Gregg, and the county seat was determined by popular election.
Harrison and Rusk counties resisted efforts to have portions of their territory assigned to Gregg County. When Gregg County was created, it first consisted of approximately 143 square miles (370 km2) taken from Upshur County, and the Sabine River was its southern boundary. In April 1874 about 141 square miles (370 km2) south of the Sabine River in Rusk County was added to Gregg County. The third portion, of about 145 square miles (380 km2) to be taken from Harrison County, was never realized. Many of its voters continued to elect Republicans to county offices.
By 1919 the county population was a total of 16,700, of which 8,160, or forty-eight percent, was black. Most were sharecroppers or tenant farmers raising cotton as a commodity crop. Members of the Negro Business League set up a cooperative store in Longview to compete with white merchants and offer African-American residents more choices for purchases. Beginning July 10, the town had a short-lived Longview Race Riot in which one black man was killed, and several black homes and properties were burned. It was quelled when the sheriff asked for Texas National Guard and other law enforcement. They established a curfew and military occupation.  
Agricultural work declined during the Great Depression of the 1930s, and many African Americans continued to leave in the Great Migration north to find other work. In October 1930, oil was discovered in Henderson, Texas near Kilgore. Suddenly the county economy was booming, and the East Texas Oil Field attracted so many workers that county population increased by more than 500% by 1940. Growth stabilized but oil has continued to be important. County demographics changed as other workers were attracted to the area. In the early 21st century, slightly less than 20% of the population is African American.
Texas Attorney General John Ben Shepperd, who served from 1953-1957, maintained a ranch in Gregg County near his native Gladewater. He also served on the Gregg County Commissioners Court for a brief period in 1949. 
|U.S. Decennial Census
1850–2010  2010–2014 
As of the census  of 2000, there were 111,379 people, 42,687 households, and 29,667 families residing in the county. The population density was 406 people per square mile (157/km²). There were 46,349 housing units at an average density of 169 per square mile (65/km²). The racial makeup of the county was 72.89% White, 19.86% Black or African American, 0.52% Native American, 0.68% Asian, 0.02% Pacific Islander, 4.55% from other races, and 1.49% from two or more races. 9.14% of the population were Hispanic or Latino of any race.
There were 42,687 households out of which 33.50% had children under the age of 18 living with them, 52.00% were married couples living together, 13.50% had a female householder with no husband present, and 30.50% were non-families. 26.10% of all households were made up of individuals and 10.50% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.06.
In the county, the population was spread out with 26.70% under the age of 18, 10.30% from 18 to 24, 28.20% from 25 to 44, 21.50% from 45 to 64, and 13.20% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 93.80 males. For every 100 females age 18 and over, there were 90.40 males.
The median income for a household in the county was $35,006, and the median income for a family was $42,617. Males had a median income of $33,186 versus $21,432 for females. The per capita income for the county was $18,449. About 12.00% of families and 15.10% of the population were below the poverty line, including 20.50% of those under age 18 and 11.40% of those age 65 or over.
The following school districts serve Gregg County:
- Gladewater ISD (partly in Smith, Upshur counties)
- Kilgore ISD (partly in Rusk County)
- Longview ISD
- Pine Tree ISD
- Sabine ISD
- Spring Hill ISD
- White Oak ISD
- Greggton - annexed to Longview in the 1950s 
- Spring Hill - annexed to Longview on October 7, 1983 
Gregg subsequently became a classic “ Solid South” Democratic county between 1904 and 1948, but has since become solidly Republican at a Presidential level, although the presence of a sizeable black population has permitted the Democrats to gain a quarter of the countywide total at virtually every election. Nonetheless, Gregg was one of only sixteen Texas counties to vote for Barry Goldwater in his 1964 landslide loss, and the last Democrat to carry the county was Harry S. Truman in 1948.
- National Register of Historic Places listings in Gregg County, Texas
- Recorded Texas Historic Landmarks in Gregg County
- "Gregg County Courthouse, Longview, Texas". www.texasescapes.com. Retrieved 16 March 2018.
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 11, 2011. Retrieved December 16, 2013.
- "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 144.
- William M. Tuttle, Jr., "Violence in a `Heathen' Land: the Longview Race Riot of 1919", Phylon 33 (1972), accessed 6 January 2015 (subscription required)
- Kenneth R. Durham, Jr. (1980). "THE LONGVIEW RACE RIOT OF 1919" (PDF). East Texas Historical Journal. Retrieved 2013-02-23.
- George E. Christian. "John Ben Shepperd". The Handbook of Texas. tshaonline.org. Retrieved July 21, 2009.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved April 27, 2015.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved April 27, 2015.
- "Texas Almanac: Population History of Counties from 1850–2010" (PDF). Texas Almanac. Retrieved April 27, 2015.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2011-05-14.
- Long, Chistopher (15 June 2010). "GREGGTON, TX". tshaonline.org. Retrieved 18 March 2018.
- LONG, CHROSTOPHER (15 June 2010). "SPRING HILL, TX [GREGG COUNTY]". tshaonline.org. Retrieved 18 March 2018.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 8 April 2018.
- Gregg County government's website
- Gregg County in Handbook of Texas Online at the University of Texas