A head to head comparison of the Wisconsin 2016 General Election gives us an idea of the break down of the voters.
Ron Johnson received 1.5M (50.2 %) votes, beating Russ Feingold who gained 1.4M (46.8 %) by 99.1k votes in Wisconsin.
Russ Feingold won 18 counties out of the 72 counties that make up Wisconsin. The record shows that Ron Johnson won 54 counties.
During the 2016 general elections, over 3M total number of votes were cast. Phil Anderson got 87,531 (88k) over Ron Johnson 1,479,471 (1M). He won the popular vote by 87,531 (88k). His victory in the State of Wisconsin (with 87,531 votes) represents 50.0% of his popular vote victory.
Top 15 Counties in General Elections
All Candidates (Senate General Elections)
These 15 counties play an important role in these Primary elections. If a candidate, can get a sizable majority in the largest counties (Waukesha, Milwaukee and Dane), it becomes very difficult to win majorities in the smaller counties without voter outreach and increased voter participation in them.
Top 15 Counties Comparison in General Elections
Milwaukee, Dane and Waukesha, three of the larger counties voted in favor of Russ Feingold, giving him a 179k vote advantage.