Miller County is a county located in the southwestern corner of the U.S. state of Arkansas. As of the 2020 census, the population was 42,600. The county seat is Texarkana. Miller County is part of the Texarkana, TX-AR, Metropolitan Statistical Area.
Country: United States
State: Arkansas
Founded: April 1, 1820; · recreated December 22, 1874 · following abolishment in 1838