Of 77 counties in the Sooner State, Seminole County ranks 61st by size (640 square miles). Seminole County is in Frontier Country Oklahoma. A recent survey of Land Network data includes approximately 1,000 acres of lakefront land and property for sale in Oklahoma's Seminole County, which is valued at a combined $269,000. Browse all waterfront property for sale in Seminole 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 Seminole County is residential property.