1918 South Dakota U.S. Senate Election

South Dakota · 3 candidates · See every 1918 U.S. Senate race

Who won the 1918 South Dakota U.S. Senate Election?

Thomas Sterling won the 1918 South Dakota U.S. Senate Election. Thomas Sterling received 51,198 popular votes (55.07%). The main challenger was W. T. Rinehart (38.95%).

See the full head-to-head between Sterling and Rinehart

Sterling +16.1 pts · won by 14,988 votes

Thomas Sterling RepublicanWINNER55.07%

51,198 votes

W. T. Rinehart Democratic38.95%

36,210 votes

Orville Rafferty VIndependent5.98%

5,560 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.