It's an interesting question that doesn't get probed enough, IMO. Republicans do better in poorer, more rural counties while Democrats do better in more populated, "wealthier" counties, yet exit poll after exit poll shows that the richest income groups still vote pretty comfortably Republican.
Obviously, there are other lurking variables like cost of living and race, but I'd like to see a more in depth study than I've been able to find.
Perhaps Democratic voters and Democratic policies cause communities to be better off (or visa versa).
I made a map from that site: Red = above average white-collar; Blue = above average blue-collar
The EV total from that map is 371-167 Blue, which is unbalanced but prob. due to the 7 most populated states being blue.
As for the OP, probably, but not a given.