Falling Spring is a town in Greenbrier County, West Virginia, United States. It is also known as Renick from the name of its post office. The population was 171 at the 2020 census. In 1769, Major William Renick from Augusta County, Virginia, settled on an entry of 1,000 acres in the northern area of Greenbrier County, an area 16 miles north of Lewisb…Falling Spring is a town in Greenbrier County, West Virginia, United States. It is also known as Renick from the name of its post office. The population was 171 at the 2020 census. In 1769, Major William Renick from Augusta County, Virginia, settled on an entry of 1,000 acres in the northern area of Greenbrier County, an area 16 miles north of Lewisburg known as Falling Spring.