Henderson County is in Western Illinois. Of the 102 counties in the state, Henderson County ranks 76th in terms of size (395 square miles). A recent survey of Land Network data totals roughly 1,000 acres of residential land for sale in Illinois's Henderson County, which is valued at a combined $2 million. The average price of residential acreage for sale in Henderson County was $144,300. The county has a rural, farm-based economy. Browse all residential land and rural property for sale in Illinois to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.