Glendale Heights, IL Prices for Houses for Sale AVERAGE 271,519 +36% MEDIAN 287,450 +39% Relative Price (per sqft.) PRICE Listings of Glendale Heights Homes for Purchase ACTIVE 19 -32% NEW 28 -46% Market Duration of Homes Sold DAYS 30 +9% Local Statistics Population 33,351 (-0.01%) House Size (sqft.) 1,459 (23.64%)