Lubbock is a city in the U.S. state of Texas and the county seat of Lubbock County. With a population of 257,141 at the 2020 census, Lubbock is the 10th-most populous city in Texas and the 84th-most populous in the United States. The city is in the northwestern part of the state, in the Great Plains region, an area known historically and geographically as the Llano Estacado, and ecologically is part of the southern end of the High Plains, lying at the economic center of the Lubbock metropolitan area, which had an estimated population of 367,109 in 2024.