The median home value in Round Lake, IL is $205,000. This is lower than the county median home value of $300,000. The national median home value is $308,980. The average price of homes sold in Round Lake, IL is $205,000. Approximately 77% of Round Lake homes are owned, compared to 18% rented, while 5% are vacant. Round Lake real estate listings include condos, townhomes, and single family homes for sale. Commercial properties are also available. If you see a property you're interested in, contact a Round Lake real estate agent to arrange a tour today! Learn more about Round Lake Real Estate.