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 periodically in Colorado a new qualified political organization becomes recognized, such as the Center Party or No Labels Party. Voters could register with these organizations only after these parties became recognized (a process handled at the state level). If data is not listed for a party, they likely were not a registration option at that time.