Bluewell, West Virginia is an unincorporated census-designated place on U.S. Route 52 in Mercer County, West Virginia, United States. As of the 2010 census, its population is 2,184. It is the terminus of West Virginia Route 20. The community has no post office, its residences being a part of Bluefield for postal purposes. Its name is derived from being halfway between Bluefield and Bramwell. The community is adjacent to Pinnacle Rock State Park.