Kennydale is a neighborhood in Renton, Washington, in the United States. As of 2008, it had an estimated population of 4,840. It lies along the southeastern shore of Lake Washington and straddles Interstate 405 which runs north-south between Renton and Bellevue, and borders the Newport Shores neighborhood of Bellevue. The part of the neighborhood on the lake side of I-405 is referred to as "Lower Kennydale", and on the east side "Upper Kennydale".