80105 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 62% of adults in 80105 typically vote, near the U.S. average of about 62%. Among adults in 80105, ~14% vote Democratic, ~49% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 80105 compares
80105 sits in a sparsely populated area with few comparable zip codes nearby.
80105 runs about 67 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while 80105 is one of the few Republican-leaning pockets.
Why 80105 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 80105, not a ranked or complete list of what matters most.
80105 votes against the grain of Colorado. Colorado leans Democratic overall, while 80105 runs about 67 points more Republican. A high family-household share predicts Republican voting, and about 77% of households in 80105 are family households, above 84% of zip codes.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 80105, 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 80105 looks the way it does
Homeowners vote more often than renters. About 90% of households in 80105 own their home, about 16 points above the Colorado average of 75%. 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.