Roanoke County is a county in the U.S. state of the Commonwealth of Virginia. As of the 2020 census, its population was 96,929. Its county seat is Salem, but the county administrative offices are located in the census-designated place of Cave Spring. Roanoke County is part of the Roanoke, Virginia Metropolitan Statistical Area, and is in the Roanoke Region of Virginia. The independent cities of Roanoke and Salem are inside the boundaries of Roanoke County but are not a part of the county.