To simply get the current month’s voter registration figures by party, visit our Voter Registration Data page.
* Note that the data set of active voters does include a small percentage of voters who are under 18 at present, but may be eligible to vote by the next election. Colorado law allows residents to register to vote as young as 16. Only active voters who are age 18 on or before Election Day will be mailed a ballot. Note that “Approval Voting” became an official Colorado qualified political organization in September 2018. Voters could register with this organization only after this date.