According to census.gov, the 2007 population estimate of Clay County, West Virginia, is 10,330.
According to census.gov, the total area in square miles of Clay County, West Virginia, is 343.82.
According to the NACo, the county seat for Clay County, West Virginia, is Clay.
According to census.gov, the total water area of Clay County, West Virginia, is 1.42 square miles.
According to the NACo, Clay County, West Virginia was founded in the year 1858.
The address of the Clay County Historic Landmarks Commission is: Po Box 670, Clay, WV 25043-0670
According to census.gov, the area in square miles of Lewis County, West Virginia, is 389.75.
According to census.gov, the area in square miles of Lincoln County, West Virginia, is 438.59.
According to census.gov, the area in square miles of Marshall County, West Virginia, is 312.18.
According to census.gov, the area in square miles of Mercer County, West Virginia, is 420.69.
According to census.gov, the area in square miles of Morgan County, West Virginia, is 229.67.
According to census.gov, the area in square miles of Ohio County, West Virginia, is 108.86.
According to census.gov, the area in square miles of Pleasants County, West Virginia, is 134.59.
According to census.gov, the area in square miles of Pocahontas County, West Virginia, is 941.85.
According to census.gov, the area in square miles of Preston County, West Virginia, is 651.39.