Voter Registration Analysis, December 2016

Following the 2016 election, Republicans regained some footing in the most recent voter registration report from the Colorado Secretary of State’s office, but still have an overall deficit compared to both Democrats and Unaffiliated voters.

While 2016 was a successful election for Republicans nationally, here in Colorado federal candidates fell short, with Democrat Hillary Clinton defeating Donald Trump at the top of the ticket and incumbent Michael Bennet besting Darryl Glenn for U.S. Senate. That outcome may be attributed in part to the shifting growth in voter registration over the past few years.

December 2012 December 2016 Change
Voters Share Voters Share (as a share of all voters)
Unaffiliated 1,293,877 35.4% 1,407,556 36.3% Up 2.5%
Democrat 1,153,659 31.6% 1,208,891 31.2% Down 1.3%
Republican 1,158,451 31.7% 1,186,441 30.6% Down 3.5%
All Voters 3,651,137 3,875,266

Overall, voter registration is up

As of December 1, 2016, there are 3,875,266 registered voters in Colorado, an increase of more than six percent from the 3,651,137 registered voters in December 2012.

Party affiliation is shifting

The Republican share of voters in the state has dropped 3.5 percent since October 2012.

The Democratic share of voters in the state has dropped 1.3 percent since October 2012.

The Unaffiliated share of voters in the state has increased 2.5 percent since October 2012.

Democrats and Unaffiliated voter groups are growing faster than Republicans

Over the past six months, Republicans saw 5 percent growth in their numbers across the state, from 1.13 million in June to 1.17 million in December.

In that same time period, however, Democrats added six percent to their numbers, from 1.14 million to 1.21 million, while the number of Unaffiliated voters in the state grew at almost seven percent, from 1.32 million in June to 1.41 million this month.