Newton County is the easternmost county in the U.S. state of Texas. As of the 2020 census, its population was 12,217. Its county seat is Newton. The county is named for John Newton, a veteran of the American Revolutionary War.

The Beaumont–Port Arthur metropolitan statistical area is defined by the United States Census Bureau as a three-county region in Southeast Texas. The metropolitan area shares borders with the Houston–The Woodlands–Sugar Land metropolitan area to the west and the Lake Charles metropolitan area in the U.S. state of Louisiana to the east. The area is also known as the Golden Triangle. The "golden" refers to the wealth that came from the Spindletop oil strike near Beaumont in 1901, and "triangle" refers to the area among the cities of Beaumont, Port Arthur, and Orange.