There was a total of around $7 million of farms, hunting land and other rural land and acreage for sale in Henry County recently on Land.com. The total of all Henry County farms and rural real estate for sale was 1,000 acres. Henry County ranks 91st out of 102 counties in the Land of Lincoln for the combined amount of land currently advertised for sale. Of all farms and rural real estate for sale in Henry County, Geneseo had the most land for sale. Henry County is the 16th largest county (825 square miles) in Illinois. It's located in the Western Illinois region of the state.