Grayslake, IL Prices for Houses for Sale AVERAGE 317,658 -5% MEDIAN 304,950 +22% Relative Price (per sqft.) PRICE Listings of Grayslake Homes for Purchase ACTIVE 45 -18% NEW 80 -23% Market Duration of Homes Sold DAYS 33 +16% Local Statistics Population 20,584 (-0.01%) House Size (sqft.) 1,956 (13.82%)
