81025 leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 68% of adults in 81025 typically vote, above the U.S. average of about 62%. Among adults in 81025, ~18% vote Democratic, ~50% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How 81025 compares
81025 runs about 57 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while 81025 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 81025. The southeast side is the most Republican-leaning (R+52) and the southwest side is the least Republican-leaning (R+29), a spread of about 23 points.
Why 81025 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 81025, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in 81025 live in densely developed areas, about 33 points below the Colorado average of 35%. 81025 runs against the grain of Colorado, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 81025, CO sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 81025 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 81025 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.