Voter turnout in this week’s primary election appears to be relatively low despite more than $1.5 million in campaign spending aimed at securing votes for Boulder-area candidates.
About 30% of active registered voters cast ballots in this year’s election, according to an analysis of preliminary ballot return data by Boulder Reporting Lab. This compares to about 35% in the 2022 primary and 55% in the 2020 primary, a year when voters decided the Democratic candidate for U.S. senator.
The turnout data for this week’s primary is likely to increase as ballots from other counties and overseas or military voters may still arrive. The Boulder County Clerk and Recorder will post the final unofficial election results on July 4.
Separately, the average age of people who voted in this year’s primary appears to be disproportionately older. The average age of active registered voters in Boulder County is about 50, while the average age of those who voted in this year’s election was about 60. This is slightly higher than the average age of voters who participated in this year’s presidential primary in March when more of CU Boulder’s approximately 36,000 students were likely in town to vote.
Given the margins of victory, the election standings are not expected to dramatically change. For more about the results, see our updated story from election night or this chart.

