Land for sale in Wallace County, Kansas, recently totaled around $1 million and almost 2,000 acres. Wallace County ranks 98th out of 105 counties in the state for the combined amount of land currently advertised for sale. Of all land and rural real estate for sale in Wallace County, Sharon Springs had the most land for sale. Agriculture and farming drives the Wallace County economy, with 294 farms recorded in the county during the U.S. Census in 2012. Farming activities in Wallace County generate annual revenues of $9 million, most of which is from crops. Wallace County is Kansas's 22nd biggest county (913 square miles). It's located in the High Plains Kansas region of Kansas.