Any Democratic rural white Southern counties left?

[SingingAnalyst]

Elliott KY, Harlan KY, Knott KY, Perry TN, and Cottle TX are gone. Any small, rural, mostly (90%+) white, Southern or Appalachian counties that went for Clinton in 2016?

[SingingAnalyst]

I'm not sure about Prince Edward County, VA but it might count.

It's 36% Black and voted GOP in each election from 1960 through 1992 inclusive-- not what I imagined, but OK, thanks.

[SingingAnalyst]

What do you consider rural?

No medium or large cities or suburbs by most conventional definitions. No city or town over 50,000 (that may even be large; I'm from Detroit suburbs where at least a dozen suburbs are that large). Universities are OK to have in rural counties. What the census bureau would consider 60% or more rural.

It appears there were just a few holdouts in 2016, and even those are iffy.

[SingingAnalyst]

I was able to find two counties in Georgia that I think may fit the description of what the OP is looking for.

Baldwin County
Population (2010): 45,720
County Seat: Milledgeville
Demographics (2010)
54.03% Non-Hispanic White
41.26% Black
2.01% Hispanic
1.27% Asian
1.08% Multiracial
Election Results
1992: D+ 13.15
1996: D+ 10.44
2000: R+ 1.22
2004: R+ 6.41
2008: D+ 4.61
2012: D+ 5.50
2016: D+ 1.69

Liberty County
Population (2010): 63,453
County Seat: Hinesville
Demographics (2010)
42.69% Non-Hispanic White
41.00% Black
9.71% Hispanic
3.49% Multiracial
1.86% Asian
Election Results
1992: D+ 12.93
1996: D+ 17.47
2000: D+ 8.94
2004: D+ 3.81
2008: D+ 28.33
2012: D+ 30.21
2016: D+ 21.20

Again, not sure if Liberty County would be considered "rural" to some, so make what you will of it.

Liberty County sounds pretty close. Still, 41% Black means that White voters must have preferred Trump by a large margin. Even so, a relatively small Southern county where Clinton reached well into the 30s among white voters seems like quite an achievement. Thank you all!