Winfield, IL Prices for Houses for Sale AVERAGE 483,848 +6% MEDIAN 477,000 -2% Relative Price (per sqft.) PRICE Listings of Winfield Homes for Purchase ACTIVE 19 -24% NEW 24 -40% Market Duration of Homes Sold DAYS 27 -4% Local Statistics Population 9,579 (-0.01%) House Size (sqft.) 2,027 (-12.82%)