Are there any areas in Mississippi and Oklahoma where Biden won the white vote?

[Adam Griffin]

The (I'm guessing) MSU precinct in Starkville is a likely contender based merely on 2012 & 2016 figures:

[Adam Griffin]

So I thought I would take a look at Oklahoma (because personally I found the implication of OP's question a bit extreme).

In short, there are plenty of areas in Oklahoma where white voters are predominantly-Democratic (and not just in college precincts).

But to proceed, one has to decide - especially post-2020 Census - how to handle the "Native" vote. Do you:

• Assume all Natives are in fact such and actually vote considerably to the left of white voters?
• Assume most of them are culturally and demographically no different than whites and vote accordingly?

I firmly believe the correct answer is much closer to Option #2 than Option #1, but I counted conservatively and used Option #1 for support and Option #2 for turnout (i.e. "Natives" went 70-75% D while simultaneously enjoying turnout levels among whites). This means that white D support & white turnout are projected below actual performance, thereby at least slightly underestimating white D support. This gives us a bare minimum of precincts where Biden clearly won the bulk of white voters.

It's also worth noting that the precincts included are only white majority, white plurality or non-black plurality (VAP): no plurality/majority-black precincts or majority-Latino precincts are included (and I am sure there are many of these where Biden also won the white vote).

The three clusters that meet these very conservative criteria in OKC & Tulsa have a combined population of 170k people. I have virtually no doubt that precincts comprising several hundred thousand people in OK saw the bulk of white voters supporting Biden (with a good chunk of them being more obscured in predominantly black and/or Latino precincts).

Biden likely won 58-64% of the white vote in both of the OKC-area clusters; 55-60% in the Tulsa cluster.

[Adam Griffin]

The (I'm guessing) MSU precinct in Starkville is a likely contender based merely on 2012 & 2016 figures:

#HailState

I don't think that's the MSU precinct.  The demographics don't seem to fit with that.  Looking at the background map, it looks like the campus mostly lies in the "East Starkville" precinct, which is R+8 in the composite.  Ole Miss seems to be mostly in the "Oxford 1" precinct, which is R+17.

Breaking Central Starkville down by block, it looks like almost all the whites live in the eastern tip of it (adjacent to MSU and/or downtown) and almost all the blacks live on the western side. I think that pretty much correlates with it being some form of on-campus or off-campus student housing area. Half-a-mile from the stadium and within a mile of almost everything on the campus.

[Adam Griffin]

At least when I was there (now over 10 years ago), there were maybe 3 different precincts that had at least one dorm in them, making it confusing for students living in on-campus housing to figure out where to vote, as well as requiring people to update their voter registration status if they changed dorms.

Is the map above blue = African American and red = white? That off-campus red area (the Cotton District) is mostly students.

Yes, red = white.