Guess the previous county's location and demographics based on it's voting history

[LAB-LIB]

1980: Reagan + 28
1984: Reagan + 36
1988: Bush + 22
1992: Bush + 5
1996: Dole + 11
2000: Bush + 18
2004: Bush + 12
2008: Obama + 3
2012: Romney + 6
2016: Trump + 3
2020: Biden + 5

I'm guessing a county in the Upper-Midwest with a population that's about 90% white, that was previously rural but is either in the exurbs of a major city or has a growing small city of its own.

And for the next county:

1960: Kennedy +34.3
1964: Johnson +45.4
1968: Humphrey +23.8
1972: Nixon +8.4
1976: Carter +20.7
1980: Reagan +0.1
1984: Reagan +0.4
1988: Dukakis +29.1
1992: Clinton +27.7
1996: Clinton +24.1
2000: Bush +6.2
2004: Bush +18.1
2008: McCain +8.0
2012: Romney +37.2
2016: Trump +44.5
2020: Trump +45.9

Would've been so much cooler had Carter in '80 and Mondale had won it, but any guesses?

[LAB-LIB]

1980: Reagan + 28
1984: Reagan + 36
1988: Bush + 22
1992: Bush + 5
1996: Dole + 11
2000: Bush + 18
2004: Bush + 12
2008: Obama + 3
2012: Romney + 6
2016: Trump + 3
2020: Biden + 5

I'm guessing a county in the Upper-Midwest with a population that's about 90% white, that was previously rural but is either in the exurbs of a major city or has a growing small city of its own.

And for the next county:

1960: Kennedy +34.3
1964: Johnson +45.4
1968: Humphrey +23.8
1972: Nixon +8.4
1976: Carter +20.7
1980: Reagan +0.1
1984: Reagan +0.4
1988: Dukakis +29.1
1992: Clinton +27.7
1996: Clinton +24.1
2000: Bush +6.2
2004: Bush +18.1
2008: McCain +8.0
2012: Romney +37.2
2016: Trump +44.5
2020: Trump +45.9

Would've been so much cooler had Carter in '80 and Mondale had won it, but any guesses?

It sounds like somewhere in Coal Country that is over 95% white and less than 20% have bachelor's degree or higher. My county was Leelanau, MI.

1980: Reagan + 8
1984: Reagan + 22
1988: Bush + 14
1992: Clinton + 4
1996: Clinton + 10
2000: Gore + 8
2004: Kerry + 2
2008: Obama + 6
2012: Romney + 1
2016: Trump + 13
2020: Trump + 14

It is a county with a history of coal mines, but it's not what is usually described as "coal country" (not in WV or KY). It's also predominantly white but not 95%.

EDIT: I will answer yes or no questions btw