The total value of farms and ranches for sale in Lyon County recently on Land.com was around $14 million. This represents 1,000 acres of farms and ranches for sale in Lyon County. Lyon County ranks 35th out of 99 counties in Iowa for the combined amount of land currently advertised for sale. Larchwood had the most land for sale. Agriculture and farming drives the Lyon County economy, with 1,139 farms recorded in the county during the U.S. Census in 2012. Farming activities in Lyon County generate annual revenues of $22 million, the majority of which comes from livestock products. Lyon County is the 26th largest county (587 square miles) in Iowa. It's located in the Western Iowa region of Iowa.