Texarkana is a city in the U.S. state of Arkansas and the county seat of Miller County, on the southwest border of the state. The city is located across the state line from its twin city of Texarkana, Texas. The city was founded at a railroad intersection on December 8, 1873, and was incorporated in Arkansas on August 10, 1880. Texarkana 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 that dominates the flat Gulf Coastal Plain. Texarkana's economy is based on agriculture. In addition, the city is a trading center, at crossroads of three major Interstate highways: Interstate 30, I-49, and the future I-69. Outdoor tourism, such as fishing at Lake Millwood and related activities, are also important in the region. The Red River Army Depot & Tenants comprise the largest single employer in the city.
The Texarkana Arkansas School District is the largest public school district on the Arkansas side.