NULL Of 254 counties in the Lone Star State, Wilson County ranks 201st in terms of size (808 square miles). Wilson County is in San Antonio Texas. Recent Land Network data records 1,000 acres of riverfront land and property for sale in Texas's Wilson County, which is valued at a combined $529,000. Browse all waterfront property for sale in Wilson 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 Wilson County is residential property.