There are 12 US Post Offices in Lubbock County serving a total of 65,898 residents equating to 5,492 residents per post office. It's estimated that approximately 105,181 packages are handled across the 12 county post offices annually. 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). The Lubbock MSA and Levelland Micropolitan Statistical Area (\u00b5SA), encompassing only Hockley County, form the larger Lubbock\u2013Levelland Combined Statistical Area (CSA)."