81334 leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 58% of adults in 81334 typically vote, near the U.S. average of about 62%. Among adults in 81334, ~39% vote Democratic, ~19% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How 81334 compares
81334 sits in a sparsely populated area with few comparable zip codes nearby.
81334 runs about 26 points more Democratic than Colorado as a whole.
Politics vary noticeably by block within 81334. The east side is the most Democratic-leaning (D+46) and the west side is the least Democratic-leaning (D+27), a spread of about 18 points.
Why 81334 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 81334, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 45% of adults in 81334 have never been married, modestly above similar-sized zip codes (around 34%).
High-school completion, uninsured rate, and voter turnout
Places that combine low high-school-completion share and a high uninsured rate tend to turn out at a lower rate, as 81334, CO does.
Why turnout in 81334 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 81334 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 35%, about 28 points below the Colorado average of 63%. Renters vote less often than owners, and about 39% of households in 81334 rent, compared to around 19% in nearby zip codes. High-crime urban areas turn out at lower rates, and 81334 sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
Sources and methodology
Precinct-level voting records used to fit the model come from Colorado Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.