81146 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 69% of adults in 81146 typically vote, above the U.S. average of about 62%. Among adults in 81146, ~22% vote Democratic, ~47% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 81146 compares
81146 sits in a sparsely populated area with few comparable zip codes nearby.
81146 runs about 47 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while 81146 is one of the few Republican-leaning pockets.
Why 81146 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 81146, not a ranked or complete list of what matters most.
81146 votes against the grain of Colorado. Colorado leans Democratic overall, while 81146 runs about 47 points more Republican.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 81146, CO sits in the bottom quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 81146 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 81146 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.