is the 11th-most populous city in the U.S. state of Texas and the county seat of Lubbock County. With a population of 258,862 in 2019, the city is also the 83rd-most populous in the United States. The city is in the northwestern part of the state, a region 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 has a projected 2020 population of 327,424.