Texarkana is a city in Bowie County, Texas, United States, located in the Ark-La-Tex region. It is a twin city with neighboring Texarkana, Arkansas. The population of the Texas city was 37,280 at the 2015 census estimate. The city and its Arkansas counterpart form the core of the Texarkana Metropolitan Statistical Area, encompassing all of Bowie County, Texas, and Miller County, Arkansas. The two cities had a combined population of 66,330 at the 2010 census, and the metropolitan area had a total population of 136,027.