The value of all ranches, farms, hunting land and other rural land and acreage for sale in Hanson County, South Dakota, recently was approximately $1 million, representing a total of 350 acres of land for sale in Hanson County. Hanson County ranks 52nd out of 66 counties in South Dakota for the total number of acres of land currently advertised for sale. Spencer had the most land for sale. Agriculture and farming drives the Hanson County economy, with 370 farms recorded in the county during the U.S. Census in 2012. Farming activities in Hanson County generate annual revenues of $15 million, most of which is from crops. Hanson County is the 64th largest county (435 square miles) in South Dakota. It's located in the Southeast South Dakota region of South Dakota.