NULL Of 254 counties in the Lone Star State, Upshur County ranks 234th in terms of size (592 square miles). Upshur County is in Northeast Texas. Texas's Upshur County has nearly 1,000 acres of riverfront homes and property for sale based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here was $3 million. Browse all waterfront property for sale in Upshur 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 Upshur County is undeveloped land.