Oakvale is a town in Mercer County, West Virginia, United States, along the East River. The population was 137 at the 2020 census. It is part of the Bluefield, WV-VA micropolitan area which has a population of 107,578.

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.