Above is a snapshot look at the real estate market in Crystal Lake, IL. In Crystal Lake, IL, the median house price is $201,500, making the price 15% higher than that the average for Illinois. Therefore, the affordability of Crystal Lake, IL area real estate is less affordable than the real estate in other areas of Illinois. In addition, Crystal Lake, IL has a median rent price of $1,171; this price is 27% higher than that the average rental price for Illinois. 73.4% of residents in Crystal Lake, IL are homeowners, and the average amount of people who reside in each home is 2.7. Crystal Lake, IL has a wide array of real estate options available, ranging from cost-friendly condos to high-end luxury homes. We filter listings by number of bathrooms and bedrooms, price and area to simplify the search process for Crystal Lake, IL real estate for sale.