A combined around 1,000 acres were listed for sale in Hamlin County, South Dakota, recently; the value of all Hamlin County land and rural real estate for sale was approximately $2 million. Hamlin County ranks 48th out of 66 counties in the Mount Rushmore State for the combined amount of land currently advertised for sale. Lake Norden featured the most land for sale. Agriculture and farming drives the Hamlin County economy, with 489 farms recorded in the county during the U.S. Census in 2012. Farming activities in Hamlin County generate annual revenues of $9 million, most of which is from crops. Hamlin County is South Dakota's 57th largest county (538 square miles). It's located in the Glacial Lakes & Prairies South Dakota region of South Dakota.