A total of around 9,000 acres were listed for sale in Gregory County recently; the overall value of all Gregory County land and rural real estate for sale was approximately $41 million. Gregory County ranks 21st based on the combined acreage of land for sale of the 66 counties in South Dakota. Of all farms, ranches, and rural real estate for sale in Gregory County, Burke had the most land for sale. Agriculture and farming drives the Gregory County economy, with 505 farms recorded in the county during the U.S. Census in 2012. Farming activities in Gregory County generate annual revenues of $14 million, the majority of which comes from livestock products. Gregory County is the 30th biggest county (1,053 square miles) in South Dakota. It's located in the Great Lakes South Dakota region of the state.