Manteno, IL Prices for Houses for Sale AVERAGE 366,117 +26% MEDIAN 332,900 +8% Relative Price (per sqft.) PRICE Listings of Manteno Homes for Purchase ACTIVE 21 +11% NEW 20 0% Market Duration of Homes Sold DAYS 34 -40% Local Statistics Population 8,892 (-0.01%) House Size (sqft.) 2,001 (0.05%)