1964 Wisconsin U.S. Senate Election

Wisconsin · 3 candidates · See every 1964 U.S. Senate race

Who won the 1964 Wisconsin U.S. Senate Election?

William Proxmire won the 1964 Wisconsin U.S. Senate Election. William Proxmire received 892,013 popular votes (53.31%). The main challenger was Wilbur N. Renk (46.62%).

See the full head-to-head between Proxmire and Renk

Proxmire +6.7 pts · won by 111,897 votes

William Proxmire DemocraticWINNER53.31%

892,013 votes

Wilbur N. Renk Republican46.62%

780,116 votes

Kenneth F. KlinkerkIndependent0.06%

1,062 votes

Popular-vote totals for this U.S. Senate election come from the Constituency-Level Elections Archive (CLEA) and the official public record.

Data last verified July 28, 2026.