Gregg County is a county located in the eastern part of the U.S. state of Texas. As of the 2020 census, its population was 124,239. 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, Texas metropolitan area and the Longview–Marshall, Texas combined statistical area.
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