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Ferndale is located in Whatcom County, WA. The population is 11,507, making Ferndale the 3rd largest city in Whatcom County. There are 9 public schools in Ferndale with an average Homefacts rating of B.
For the dam, see Grand Coulee Dam. Coulee Dam is a town in Douglas, Grant, and Okanogan counties in the State of Washington. The Douglas County portion of Coulee Dam is part of the WenatcheeâEast Wenatchee Metropolitan Statistical Area. The population was 1,098 as of the 2010 census.