Lake Morton-Berrydale is a census-designated place (CDP) in King County, Washington, United States. The population was 10,474 at the 2020 census.
Based on per capita income, one of the more reliable measures of affluence, Lake Morton-Berrydale ranks 44th of 522 areas in the state of Washington to be ranked.
Geography
Lake Morton-Berrydale is located in southwestern King County and is bordered to the west by the city of Auburn, to the northwest by Kent, to the north by Covington, to the northeast by Maple Valley, to the east by Black Diamond, and to the south by the Lake Holm CDP. The southern border of the Lake Morton-Berrydale CDP follows Covington Creek and Big Soos Creek, which flows west to the Green River. The namesake water body of Lake Morton is in the eastern part of the CDP, and the unincorporated community of Berrydale is in the northwest.
Washington State Route 18 forms the northwest border of the CDP, and leads northeast to Interstate 90 near Snoqualmie and southwest to Auburn. Downtown Tacoma is to the southwest, and downtown Seattle is to the northwest.
According to the United States Census Bureau, the Lake Morton-Berrydale CDP has a total area of , of which are land and , or 1.60%, are water.