Texarkana is a city in the U.S. state of Arkansas and the county seat of Miller County. The city is located across the state line from its twin city, Texarkana, Texas. The city was founded at a railroad intersection on December 8, 1873, and was incorporated in Arkansas on August 10, 1880. Texarkana (together with its Texas counterpart) is the principal city of the Texarkana metropolitan area, which is ranked 274th in terms of population in the United States with 150,098 in 2016 according to the United States Census Bureau.
Located within the Ark-La-Tex subregion of Southwest Arkansas, Texarkana is located in the Piney Woods, an oak-hickory forest atop the flat Gulf Coastal Plain. Texarkana's economy is driven by agriculture and the city's position as a crossroads of three major Interstate highways: Interstate 30 (I-30), I-49 and the future I-69. Outdoors tourism, such as fishing at Lake Millwood, are also important in the region. The Texarkana Arkansas School District is the largest public school district on the Arkansas side, leading to graduation from Arkansas High School. The city is home to Texarkana College (on the Texas side of town), and a branch campus of the University of Arkansas Community College at Hope (UACCH).
Miller County, on the Arkansas side of the metropolitan area, was abolished during the border dispute between the Republic of Texas and the United States only to be re-established later.