The Texarkana, TX–Texarkana, AR Metropolitan Statistical Area (MSA), as defined by the United States Office of Management and Budget, is a two-county region anchored by the twin cities of Texarkana, Texas and Texarkana, Arkansas, and encompassing the surrounding communities in Bowie County, Texas and Miller County, Arkansas. As of the 2010 census, the MSA had a population of 143,486. Texarkana is a subset of the broader Ark-La-Tex region.