1966 Mississippi U.S. Senate Election

Mississippi · 3 candidates · See every 1966 U.S. Senate race

Who won the 1966 Mississippi U.S. Senate Election?

James O. Eastland won the 1966 Mississippi U.S. Senate Election. James O. Eastland received 258,248 popular votes (65.46%). The main challenger was Prentiss Walker (26.78%).

See the full head-to-head between Eastland and Walker

Eastland +38.7 pts · won by 152,596 votes

James O. Eastland DemocraticWINNER65.46%

258,248 votes

Prentiss Walker Republican26.78%

105,652 votes

Clifton R. WhitleyIndependent7.77%

30,641 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.