The 2024 Colorado Republican presidential primary was held on March 5, 2024, as part of the Republican Party primaries for the 2024 presidential election. 37 delegates to the 2024 Republican National Convention were allocated on a winner-take-most basis.[2] The contest was held on Super Tuesday alongside primaries in 14 other states. Donald Trump won in 57 of the counties. Nikki Haley won the majority of the vote in seven counties. The counties Nikki Haley won were Denver, Boulder, Summit, Pitkin, Routt, San Miguel, and San Juan.[3]