Riverton is a census-designated place (CDP) in King County, Washington, United States.

[2] Riverton was formerly part of the Riverton-Boulevard Park CDP, which was split up for the 2010 census into Riverton and Boulevard Park.

[3] In April 2010 the community was annexed by the city of Burien and is no longer a CDP.

[citation needed] Riverton also refers to a neighboring former community in part of what is now Tukwila in the Duwamish River Valley.

Built 1903, the bridge developed a reputation for being rather unsafe.