A total of around 2,000 acres were listed for sale in Lamar County recently, representing a combined $46 million in Lamar County land and rural real estate for sale. Lamar County ranks 98th out of 159 counties in the Peach State for the combined amount of land currently advertised for sale. Of all locations in Lamar County with land for sale, Barnesville featured the most land for sale. From an economic perspective, government and state-level services contribute most to Lamar County's overall GDP. Lamar County is Georgia's 147th largest county (185 square miles). It's located in the Historic South Georgia region of the state.