80018 leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 69% of adults in 80018 typically vote, above the U.S. average of about 62%. Among adults in 80018, ~37% vote Democratic, ~32% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 80018 compares
Among zip codes within 15 miles, 80018 leans more Democratic than 6 of 39 neighbors.
80018 runs about 4 points more Republican than Colorado as a whole.
Politics vary noticeably by block within 80018. The east side runs the most Democratic (D+15) and the west side runs the most Republican (R+8), a spread of about 23 points.
Why 80018 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 80018, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 45% of adults in 80018 hold a bachelor's degree, about 17 points above the U.S. average of 28%.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 80018, CO sits in the top quarter nationally on this measure.
Why turnout in 80018 looks the way it does
Homeowners vote more often than renters. About 90% of households in 80018 own their home, about 15 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.