Of 159 counties in the state, Sumter County ranks 32nd by size (492 square miles). Sumter County is in Southern Rivers Georgia. A recent survey of Land Network data shows 1,000 acres of ranches for sale in Georgia's Sumter County, which is valued at a combined $329,000. Browse all Sumter County ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg. The most common type of land for sale by combined acreage in Sumter County is house.