High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Dickenson County is a county located in the Commonwealth of Virginia. As of the 2000 census, the population was 16,395. Its county seat is Clintwood. Dickenson County, formed in 1880 from parts of Buchanan County, Russell County, and Wise County, is Virginia's youngest county. It was named for William J. Dickenson, delegate to the Virginia General Assembly from Russell County, 1859-1861, 1865-1867, and 1877-1882.