Of 133 counties in the Old Dominion, Grayson County ranks 40th by size (445 square miles). Grayson County is in Mountain Virginia. Virginia's Grayson County has about 1,000 acres of riverfront property for sale based on recent Land Network data. The combined market value of farms and rural land for sale here was nearly $1 million. Browse all waterfront property for sale in Grayson County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Grayson County is undeveloped land.