The Olympic_Peninsula is like a provincial backwater in Washington_(state).
https://en.wikipedia.org/wiki/Olympic_Peninsula#Cities_and_towns_in_the_Olympic_Peninsula
Most people don't want to live in a provincial backwater, because of limited employment options. Many services provided in big cities and towns just aren't there in the sticks.
https://www.fs.usda.gov/r06/olympic/wilderness
However, small town life, or living in the wilderness is just right for people who want to get away from all the urban B$.
https://www.nps.gov/olym/planyourvisit/visiting-wilderness.htm
The Olympic Peninsula is a heavily protected wilderness. Aside from some small towns, there is no reason to ever have a big city there.
https://www.nps.gov/olym/planyourvisit/wilderness-trip-planner.htm
https://en.wikipedia.org/wiki/Geography_of_Washington_(state)
https://en.wikipedia.org/wiki/Western_Washington Most of the population is concentrated in the Seattle_metropolitan_area, or the Puget_Sound_region. Then, the Portland and Vancouver, WA area.
https://en.wikipedia.org/wiki/Eastern_Washington
Perhaps Spokane,_Washington might become as big as S.L. City, or even Denver, some day.
https://en.wikipedia.org/wiki/Spokane,_Washington#Infrastructure
https://www.reddit.com/r/skyscrapers/comments/1vjslfy/california_vs_texas_vs_canada_vs_australia_a/
