Looking for Arlington Heights, Cook County, IL condos for sale? Searching apartments for sale in Arlington Heights, Cook County, IL has never been easier on PropertyShark! There are currently 18 condos for sale in Arlington Heights, Cook County, IL to browse through, with prices between and . Use the filtering options available (number of bedrooms and bathrooms, square footage, year built, etc.) to find Arlington Heights, Cook County, IL apartments for sale according to your specific needs. Also, if you’re a real estate investor, a good rule of thumb is to look for condos for sale near you because managing apartments for sale nearby is much more time- and cost-effective than managing properties that are located far away.