Lee County is in Northern Illinois. Of the 102 counties in the state, Lee County is 21st in terms of its size (466,528 acres). There is 1,000 acres of residential land and property for sale in Illinois's Lee County based on recent Land Network data. The combined market value of land and rural real estate for sale here is $10 million. The average price of residential land for sale in Lee County was $418,326. 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.