Land for sale in South Dakota's Day County recently totaled almost $12 million and around 1,000 acres. Day County ranks 23rd in the Coyote State for the total number of acres of land currently advertised for sale. Of all farms, ranches, and rural real estate for sale in Day County, Webster featured the most land for sale. Its economy is defined as agricultural, with 693 farms recorded in the county during the most recent U.S. Census. Farming activities in Day County generate annual revenues of $9 million, most of which is from crops. Day County is South Dakota's 28th biggest county (1,091 square miles). It's located in the Glacial Lakes & Prairies South Dakota region of South Dakota.