[Fiji Hill]

You can add these “blue” affluent communities to the list:
Mill Valley
Palo Alto
Saratoga
Santa Cruz
Naples
Pacific Palisades

[ssaftler]

Let’s not forget the old stand-bys of rampant Leftism in Caliph-phony-a:

Berkeley
Davis (retirement community for Berkeley hippies)
Humboldt County (home of “vegan” beer)

[JDoutrider]

Adding the Marin County towns of Belvedere, Ross, and Bolinas to your list...