 About 0.6% of families and 2.2% of the population were below the poverty line, including 3.0% of those under age 18 and none of those age 65 or over.Maple Valley, Washington

Maple Valley is a city in King County, Washington, United States.The population was 22,684 at the 2010 census, and is estimated to be 27,202 as of 2019.