Mercer County is a county in Southern West Virginia on the southeastern border of the U.S. state of West Virginia. At the 2020 census, the population was 59,664. Its county seat is Princeton. The county was originally established in the State of Virginia by act of its General Assembly on March 17, 1837, using lands taken from Giles and Tazewell counties.
Mercer County is part of the Bluefield, WV-VA Micropolitan Statistical Area.
Virginia's New River Valley region, colloquially named, is a four-county area along the New River in Southwest Virginia in the United States, including such major features as Claytor Lake, part of the Jefferson National Forest, the city of Radford, the town of Blacksburg, and the river itself, including the Pulaski terminus of the New River Trail State Park.
Local TV stations and tourism marketing promoters use the phrase to mean the counties of Giles, Pulaski, Montgomery and Floyd, the towns within them (e.g., Blacksburg), and the independent City of Radford, all located in the New River watershed. While Floyd County is not on the New River itself, it shares the Little River (New River tributary) with Montgomery and Pulaski.
View the full Wikipedia page for New River Valley