Iowa Counties with the most and highest percentage of democrat voters; the most and highest percentage of republican voters and the most and highest percentage of other voters in the 2016 presidential election.

Counties of Iowa
Allamakee	Benton
Black Hawk	Boone
Bremer	Buena Vista
Carroll	Cedar
Cerro Gordo	Cherokee
Clinton	Dallas
Delaware	Des Moines
Dickinson	Dubuque
Harrison	Iowa
Jasper	Johnson
Jones	Linn
Madison	Mahaska
Marion	Marshall
Mills	Muscatine
O Brien	Page
Polk	Pottawattamie
Poweshiek	Scott
Story	Wapello
Warren	Washington
Webster	Woodbury