Note: this map uses colors that are generally not used for presidential elections. See File:United States presidential election results by county, 2016.svg for a map with colors consistent with what is described here.
2016 US presidential elections by county.

  Republican &gt;= 40%
  Republican &gt;= 50%
  Republican &gt;= 60%
  Republican &gt;= 70%
  Republican &gt;= 80%
  Republican &gt;= 90%
  Democrat &gt;= 40%
  Democrat &gt;= 50%
  Democrat &gt;= 60%
  Democrat &gt;= 70%
  Democrat &gt;= 80%
File:USA Counties with names.svg (original version; public domain)
File:USA Counties with names.svg: User:Mr. Matté
This file: Magog the Ogre (talk) (contribs)