Macoupin County is in Central Illinois. Of the 102 counties in the state, Macoupin County is 13th in terms of its size (867 square miles). There is approximately 1,000 acres of residential land for sale in Macoupin County, Illinois, based on recent Land Network data, making it the most common type of land for sale in Macoupin County. The combined market value of farms, hunting land and other rural land and acreage for sale here is about $10 million. The average price of residential land for sale in Macoupin County was $221,662. 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.