I think the data from Alaska should be excluded, all counties have the same ratio.
Interesting that it seems to have the reverse trend -- Anchorage and Fairbanks went for Trump while much of the unorganized borough went to Clinton.
[1] - https://townhall.com/election/2016/president/ak/county [2] - https://en.wikipedia.org/wiki/United_States_presidential_ele...
Alaska's "county equivalents", as the U.S. Census calls them, are known as Census Areas, Municipalities, and Boroughs. But again, there are no election data reported at those levels.
See here for more detail: https://github.com/tonmcg/US_County_Level_Election_Results_0...