80205 is a Democratic stronghold. About 85% of voters here vote Democratic and 15% Republican.
About 70% of adults in 80205 typically vote, above the U.S. average of about 62%. Among adults in 80205, ~60% vote Democratic, ~11% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 80205 compares
Among zip codes within 15 miles, 80205 leans more Democratic than 77 of 78 neighbors.
80205 runs about 59 points more Democratic than Colorado as a whole.
Politics vary noticeably by block within 80205. The south side is the most Democratic-leaning (D+80) and the west side is the least Democratic-leaning (D+61), a spread of about 19 points.
Why 80205 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 80205, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 80205 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 80205 sits in the top quarter (about 64%, above 95% of zip codes). A high never-married share predicts Democratic voting, and about 56% of adults in 80205 have never been married, above 97% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 80205, CO sits in the top tenth nationally on this measure.
Why turnout in 80205 looks the way it does
Turnout in 80205 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.