Sugar Grove is a small community located in Pendleton County, West Virginia. Its population was 758 as of the 2010 U.S. Census. Its ZIP Code is 26815. It is located within the United States National Radio Quiet Zone.The community was named for a sugar orchard at the original town site. The Bowers House was listed on the National Register of Historic Places in 1985.The nearby Sugar Grove Station is operated by the National Security Agency.In 2017, the Navy Operations Information Command base in Sugar Grove was auctioned off by the General Services Administration.