The value of all farms, hunting land and other rural land and acreage for sale in Vermilion County, Illinois, recently was around $20 million, representing a total of 692 acres of land for sale in Vermilion County. Vermilion County ranks 46th in the state for the combined amount of land currently advertised for sale. Of all farms, hunting land and other rural land and acreage for sale in Vermilion County, Danville had the most land for sale. Vermilion County is one of the ten largest counties in Illinois (901 square miles). It's located in the Central Illinois region of the state.