It’s interesting the question’s being asked in the first place because the classic example of the Asian ethnoburb in North America is the San Gabriel Valley/626 and is actually the area which led to the
creation of the term. Within California, it’s pretty well known that Asian ethnoburbs are a thing and places like Westminster, the SGV and Fremont have a connotation but for whatever reason, there’s a perception outside the state that LA and especially the Bay Area are a lot whiter than they actually are.