registration records show Secretary of State's website 19% of active registered voters more active Republicans Secretary of State statistics showed total number of registered voters this year in Colorado 3,588,192 registered voters as of August, 2014 27% of active registered voters in the 6th Colorado As of October 1, 2011 53 percent active Republican registrants voter registration statistics Colorado Secretary of State Voter Registration Statistics almost 3.4 million Voter registration figures Colorado voter registration records the Colorado Secretary of State website