About Wynnewood, Overland Park, KS The Wynnewood neighborhood is located in South Overland Park, KS, just east of Nall Avenue at 131st Terrace.  The Wynnewood community has 115 homes and neighbors enjoy a community swimming pool.  Residents of Wynnewood attend the award-winning Blue Valley Schools.  If you are interested in buying or selling a home in Wynnewood or another south Johnson County neighborhood, please contact the Russell Home Team.   Homes for Sale in Wynnewood, Overland Park, KS Wynnewood, Overland Park, KS Home Sales Report for January through September 2011 Homes Listed:  1 Homes Sold:  4 (an additional 3 homes are under contract) Average List Price:  $340,900 Average Sale Price:  $340,750 Lowest Sale Price:  $309,000 Highest Sale Price:  $384,000 Average Days on Market:  74 11/18/2011