Suburban counties that are bluer than their core anchors?

[Sol]

DeKalb is basically an anchor county too, even if it has less anchor than Fulton. Clayton actually does count though.

Durham should be whatever you consider Ramsey or Tarrant -- it's a secondary urban center rather than a suburb. Speaking of which, if you do consider Durham in that group, Ramsey counts too.

Yolo is more Democratic than Sacramento, though it's debatable if it's suburban per se.

[Sol]

If we include independent cities, Petersburg is bluer than Richmond, VA. Like Clayton County, GA, it's mostly black.

Petersburg, like Durham or St. Paul, is historically a separate center though one which is much less significant overall.

[Sol]

In North Carolina, Spring Lake is more Democratic than Fayetteville. It feels a bit odd to call it a suburb, but East Spencer is a good bit more Democratic than Salisbury.

Chapel Hill and Carrboro are also more Democratic than Durham. Although most people wouldn't consider them suburbs, they still have some strong suburban qualities.