Clark County is in Central Illinois. Of the 102 counties in the Prairie State, Clark County is 54th in terms of its size (504 square miles). Clark County, Illinois, includes around 1,000 acres of farms for sale based on recent Land Network data. The combined market value of farmsand rural real estate for sale here was about $1 million. The average price of farms for sale in Clark County was $317,948. Farms for sale in Clark County feature livestock including horses, cattle, goats, sheep and pig. Browse all Illinois farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or individual needs.