The overall value of farms, ranches, hunting land and other land for sale in Codington County, South Dakota, recently on Land.com was $6 million. This represents almost 1,000 acres of land and rural real estate for sale in Codington County. Codington County ranks 35th out of 66 counties in the Coyote State for the total number of acres of land currently advertised for sale. Of all farms and ranches for sale in Codington County, Watertown featured the most land for sale. Codington County is the 46th largest county (717 square miles) in South Dakota. It's located in the Glacial Lakes & Prairies South Dakota region of South Dakota.