Seattle Segregation vs. Southern Segregation
In most southern states, segregation of schools, buses, restaurants, and public facilities was required by law. That was not the case in Washington State. Indeed, it was technically illegal to discriminate on the basis of race, although the law was almost never enforced.
Less total than the southern version, Seattle’s segregation practices nevertheless extended well beyond housing. They also affected not just Blacks but also Asian Americans. 
Coon Chicken Inn stood as beacon of bigotry on Lake City Way at 20th Ave NE until the 1950s. Patrons entered the restaurant through the mouth.