Texas' 26th congressional district of the United States House of Representatives includes rural Cooke County to the north and some of Wise County to the West and includes parts of Denton County, including Flower Mound, Lewisville and parts of Corinth, Carrollton, Little Elm and The Colony. The current Representative is Michael C. Burgess. The district is best known as the seat of former House Majority Leader Dick Armey.

Cooke County is a county in the U.S. state of Texas. At the 2020 census, its population was 41,668. The county seat is Gainesville. The county was founded in 1848 and organized the next year. It is named for William Gordon Cooke, a soldier during the Texas Revolution. It is a part of the Texoma region.