The value of all farms, ranches, hunting land and other land for sale in Gregory County, South Dakota, recently was around $11 million, representing a total of 2,260 acres of land for sale in Gregory County. Gregory County ranks 28th in the Coyote State for the total acreage of land currently advertised for sale. Of all farms, ranches, hunting land and other land for sale in Gregory County, Gregory featured the most land for sale. Gregory County has a large agricultural economy, with 505 farms recorded in the county during the latest U.S. Census. Farming activities in Gregory County generate annual revenues of $14 million, the majority of which comes from livestock products. Gregory County is South Dakota's 30th biggest county (1,053 square miles). It's located in the Great Lakes South Dakota region of the state.