Lubbock County is a county located in the U.S. state of Texas. As of the 2010 census, the population was 278,831. Its county seat is Lubbock. The county was created in 1876 and organized in 1891. It is named for Thomas Saltus Lubbock, a Confederate colonel and Texas Ranger (some sources give his first name as Thompson).Lubbock County, along with Crosby County, and Lynn County, is part of the Lubbock Metropolitan Statistical Area (MSA).