81136 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 69% of adults in 81136 typically vote, above the U.S. average of about 62%. Among adults in 81136, ~22% vote Democratic, ~47% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 81136 compares
81136 sits in a sparsely populated area with few comparable zip codes nearby.
81136 runs about 47 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while 81136 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 81136. The west side is the most Republican-leaning (R+39) and the northwest side is the least Republican-leaning (R+20), a spread of about 18 points.
Why 81136 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 81136, not a ranked or complete list of what matters most.
81136 votes against the grain of Colorado. Colorado leans Democratic overall, while 81136 runs about 47 points more Republican.
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as 81136, CO does.
Why turnout in 81136 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 81136 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.