NULL Of 254 counties in the Lone Star State, Polk County ranks 53rd by size (1,109 square miles). Polk County is in Piney Woods South Texas. A recent survey of Land Network data totals approximately 1,000 acres of riverfront land and property for sale in Texas's Polk County, which is valued at a combined $9 million. Browse all waterfront property for sale in Polk 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 Polk County is undeveloped land.