81006 leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About 86% of adults in 81006 typically vote, above the U.S. average of about 62%. Among adults in 81006, ~34% vote Democratic, ~52% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How 81006 compares
Among zip codes within 15 miles, 81006 leans more Republican than 5 of 7 neighbors.
81006 runs about 31 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while 81006 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 81006. The west side runs the most Democratic (D+6) and the southeast side runs the most Republican (R+39), a spread of about 45 points.
Why 81006 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 81006, not a ranked or complete list of what matters most.
81006 votes against the grain of Colorado. Colorado leans Democratic overall, while 81006 runs about 31 points more Republican.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 81006, CO sits above the national average 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 81006 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 81006 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.