538: Americans’ Shift To The Suburbs Sped Up Last Year

[Southern Senator North Carolina Yankee]

I'm guessing this shift is being caused by older millennials (1980-1988) settling down and starting families?

This might be good news for Republicans in 2020. I believe that conservatives become politically active later in life compared to liberals and that this point usually starts with when they start settling down and have a family.

Uh no, this is anything but good news for Republicans.  See Loudon and Prince William County, VA voting patterns over the last 20 years for more.

NOVA is socially liberal like the rest of the Northeast States that's why its voting for Dems.

Now Virginia is part of the "Northeast" - my how times have changed.  What happens when the Atlanta suburbs start pushing the state blue, will the Northeast just extend all the way to Florida?

The proper thing to say is that the Upper South suburban areas are trending Dem (see: Baltimore-DC corridor, also NoVa).

So are various suburbs in North Carolina, Georgia, and Florida.

Yes, true.
My main point though was that 'Northeast' is a term too many people define to cover a too-large area.  Fairfax County is still culturally distinct from Vermont, despite its Democratic trend. To pretend they are in the same region, with all due respect to those who agree with that statement, is utterly laughable.

As these trends continue, it will be less appropriate to even refer to the "Northeast" as a political unit anymore.

The Areas trending GOP form an L shape from Maine, to Minnesota, to Louisiana.

Granted things can change, but I see pockets of GOP strength forming as it is.