1966 Colorado U.S. Senate Election

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

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

Gordon Allott won the 1966 Colorado U.S. Senate Election. Gordon Allott received 368,307 popular votes (58.02%). The main challenger was Roy Romer (41.93%).

See the full head-to-head between Allott and Romer

Allott +16.1 pts · won by 102,109 votes

Gordon Allott RepublicanWINNER58.02%

368,307 votes

Roy Romer Democratic41.93%

266,198 votes

Walter CranstonIndependent0.05%

332 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.