A head to head comparison of the Georgia 2016 General Election gives us an idea of the break down of the voters.
Johnny Isakson received 2.1M (54.8 %) votes, beating Jim Barksdale who gained 1.6M (41.0 %) by 536.1k votes in Georgia.
Jim Barksdale won 21 counties out of the 159 counties that make up Georgia. The record shows that Johnny Isakson won 138 counties.
During the 2016 general elections, over 4M total number of votes were cast. Allen Buckley got 162,260 (162k) over Jim Barksdale 1,599,726 (2M). He won the popular vote by 162,260 (162k). His victory in the State of Georgia (with 162,260 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 (Cobb, Gwinnett and Fulton), 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
Fulton, DeKalb and Gwinnett, three of the larger counties voted in favor of Jim Barksdale, giving him a 130k vote advantage.