A head to head comparison of the Pennsylvania 2016 General Election gives us an idea of the break down of the voters.
Patrick J. Toomey received 3M (48.8 %) votes, beating Katie McGinty who gained 2.9M (47.3 %) by 86.7k votes in Pennsylvania.
Katie McGinty won 7 counties out of the 67 counties that make up Pennsylvania. The record shows that Patrick J. Toomey won 60 counties.
During the 2016 general elections, over 6M total number of votes were cast. Edward Clifford got 235,142 (235k) over Katie McGinty 2,865,012 (3M). He won the popular vote by 235,142 (235k). His victory in the State of Pennsylvania (with 235,142 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 (Allegheny, Montgomery and Bucks), 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
Patrick J. Toomey
Philadelphia, Allegheny and Montgomery, three of the larger counties voted in favor of Katie McGinty, giving him a 528k vote advantage.