Blue Island, IL Prices for Houses for Sale AVERAGE 203,215 +29% MEDIAN 219,950 +41% Relative Price (per sqft.) PRICE Listings of Blue Island Homes for Purchase ACTIVE 20 +54% NEW 24 +20% Market Duration of Homes Sold DAYS 35 +28% Local Statistics Population 22,616 (-0.01%) House Size (sqft.) 1,567 (21.66%)