Tucker County is a county in the U.S. state of West Virginia. As of the 2020 census, the population was 6,762, making it West Virginia's fourth-least populous county. Its county seat is Parsons. The county was created in 1856 from a part of Randolph County, then part of Virginia. In 1871, a small part of Barbour County, was transferred to Tucker County. The county was named after Henry St. George Tucker, Sr., a judge and Congressman from Williamsburg, Virginia.