Here is the July 1 2017 Colorado registration tally. The percentages are: Democratic 31.49%; Republican 31.25%; Libertarian 1.18%; Green .34%; Constitution .32%; Unity .03%; independent and miscellaneous 35.40%.

In November 2016, the percentages were: Democratic 31.80%; Republican 31.51%; Libertarian 1.16%; Green .35%; Constitution .30%; Unity .02%; independent and miscellaneous 34.86%.