A total of around 1,000 acres were listed for sale in Logan County recently, representing a combined around $10 million in Logan County farms, hunting land and other rural land and acreage for sale. Logan County ranks 84th in Illinois for the combined amount of land currently advertised for sale. Lincoln had the most land for sale. Logan County is Illinois's 34th biggest county (618 square miles). It's located in the Central Illinois region of Illinois.