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1912 Colorado Gubernatorial Election

Colorado · 2 candidates · See every 1912 Governor race

Who won the 1912 Colorado Gubernatorial Election?

Elias M. Ammons won the 1912 Colorado Gubernatorial Election. Elias M. Ammons received 114,044 popular votes (42.91%). The main challenger was Edward P. Costigan (24.88%).

See the full head-to-head between Ammons and Costigan

Ammons +18.0 pts · won by 47,912 votes
Elias M. AmmonsDemocraticWINNER42.91%
114,044 votes
Edward P. CostiganProgressive24.88%
66,132 votes
Popular-vote totals for governor elections are compiled from official state results (via Wikipedia); Louisiana shows the decisive round of its jungle primary.

Data last verified July 28, 2026.