According to census.gov, the 2007 population estimate of Mercer County, West Virginia, is 62,980.
According to the NACo, the county seat for Mercer County, West Virginia, is Princeton.
According to the NACo, Mercer County, West Virginia, was founded in the year 1837.
According to census.gov, the 2007 population density estimate of Barbour County, West Virginia, is 45.7 people per square mile.
According to census.gov, the 2007 population density estimate of Cabell County, West Virginia, is 343.7 people per square mile.
According to census.gov, the area in square miles of Mercer County, West Virginia, is 420.69.
According to census.gov, the 2007 population density estimate of Logan County, West Virginia, is 83.0 people per square mile.
According to census.gov, the Census 2000 population density of McDowell County, West Virginia, is 25.4 people per square mile.
According to census.gov, the 2007 population density estimate of Marion County, West Virginia, is 182.8 people per square mile.
According to census.gov, the 2007 population density estimate of Marshall County, West Virginia, is 115.7 people per square mile.
According to census.gov, the 2007 population density estimate of Mingo County, West Virginia, is 66.9 people per square mile.
According to census.gov, the 2007 population density estimate of Monongalia County, West Virginia, is 226.7 people per square mile.