Texarkana, Texas is a municipal designation in Bowie County, Texas, United States which forms the western half of Texarkana. It is separated from Texarkana, Arkansas, by State Line Avenue. It is one of two co-principal cities of the Texarkana, Texas - Texarkana, Arkansas Metropolitan Statistical Area, which encompasses all of Bowie County, Texas, and Miller County, Arkansas The population of Texarkana, Texas is 35,699 according to http:Texarkana_TX-54872368000.aspx. Texarkana apartments for rent comparison page shows most up to date rent information on Texarkana apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.