The value of all farms and ranches for sale in Lyman County recently was around $18 million, representing a combined 4,181 acres of land for sale in Lyman County. Lyman County ranks 28th out of 66 counties in the state for the combined amount of land currently advertised for sale. There were two properties listed as sold in Lyman County through the Land Network Comparable Sales Program. This represented a total value of $1,732,520. Oacoma featured the most land for sale. Agriculture and farming drives the Lyman County economy, with 430 farms recorded in the county during the U.S. Census in 2012. Farming activities in Lyman County generate annual revenues of $12 million, most of which is from crops. Lyman County is the 14th biggest county (1,706 square miles) in South Dakota. It's located in the Great Lakes South Dakota region of South Dakota.