Land for sale in Smith County recently totaled almost $10 million and almost 2,000 acres. Smith County ranks 59th out of 105 counties in the Sunflower State for the total acreage of land currently advertised for sale. Of all farms and ranches for sale in Smith County, Smith Center had the most land for sale. Its economy is defined as agricultural, with 497 farms recorded in the county during the most recent U.S. Census. Farming activities in Smith County generate annual revenues of $13 million, most of which is from crops. Smith County is Kansas's 31st largest county (896 square miles). It's located in the Tallgrass Prairie Kansas region of the state.