Locust Mount is an unincorporated community and census-designated place (CDP) in Accomack County, Virginia, United States. It was first listed as a CDP in the 2020 census with a population of 52. The CDP is in southeastern Accomack County, on the north side of Virginia State Route 180, which leads east 1.1 kilometres (0.7 mi) to Wachapreague and west 3.5 miles (5.6 km) to U.S. Route 13 at Keller.