Suburban counties that are bluer than their core anchors?

[Battista Minola 1616]

I think all of the counties mentioned so far are either not really suburbs or an effect of asymmetric geography (although I suspect Fulton may still be slightly less Democratic than DeKalb if it did not include the northern ex Milton County blob, I need to check). South Florida should work though.

[Battista Minola 1616]

I’m thinking some of the bag area counties like Alameda or Marin county can count?

The most Democratic county in the Bay Area is consistently San Francisco, i.e. its core anchor.