There was a combined around $5 million of land and rural real estate for sale in South Dakota's Hamlin County recently on Land.com. The total size of all Hamlin County land for sale was nearly 1,000 acres. Hamlin County ranks 29th in the state for the total number of acres of land currently advertised for sale. Lake Norden had the most land for sale. Its economy is defined as agricultural, with 489 farms recorded in the county during the most recent U.S. Census. Farming activities in Hamlin County generate annual revenues of $9 million, most of which is from crops. Hamlin County is the 57th biggest county (538 square miles) in South Dakota. It's located in the Glacial Lakes & Prairies South Dakota region of South Dakota.