When I hear “rural Washington”, I think of something in the eastern or at least central part of the state like Loon Lake or even Spokane, not some little burg within commuting distance of Bremerton, Seattle, Tacoma or Olympia. There are places in the LA basin more rural than that.
Punch it into google maps and switch to satellite view - lots of forest surrounding the area, thick enough for Bigfoot to hide in. I saw him one night after closing time...