October 17, 1828
Sevier County was established. Named after Ambrose H. Sevier, a U.S. senator from Arkansas, its county seat is De Queen. Sevier County is located in southwest Arkansas and borders the state of Oklahoma. The county is located at the northern limits of the Gulf Coastal Plain. Sevier County has four rivers, each of which is impounded by a U.S. Army Corps of Engineers lake. The Little River forms the southern boundary, while the Saline River borders the east side of the county. The Cossatot River and Rolling Fork River both flow from north to south.