80005 leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican.
About 91% of adults in 80005 typically vote, above the U.S. average of about 62%. Among adults in 80005, ~51% vote Democratic, ~40% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How 80005 compares
Among zip codes within 15 miles, 80005 leans more Democratic than 6 of 60 neighbors.
Politically, 80005 sits close to the rest of Colorado.
Politics vary noticeably by block within 80005. The north side is the most Democratic-leaning (D+19) and the southwest side is the least Democratic-leaning (D+6), a spread of about 13 points.
Why 80005 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 80005, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 60% of adults in 80005 hold a bachelor's degree, about 32 points above the U.S. average of 28%. Dense areas vote Democratic, and 80005 sits in the top fifth on density (about 82%, above 84% of zip codes).
Population density and Democratic lean
Places with high population density tend to lean Democratic; 80005, CO sits in the top quarter nationally on this measure.
Why turnout in 80005 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 80005 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 88% of households in 80005 own their home, compared to around 67% in nearby zip codes. High high-school completion lines up with higher turnout, and about 97% of adults in 80005 have completed high school, above 89% of zip codes. 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.