80820 leans slightly Republican by roughly 8 points: about 46% of voters vote Democratic and 54% Republican.
About 82% of adults in 80820 typically vote, above the U.S. average of about 62%. Among adults in 80820, ~38% vote Democratic, ~44% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 80820 compares
80820 runs about 20 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while 80820 is one of the few Republican-leaning pockets.
Why 80820 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 80820, not a ranked or complete list of what matters most.
80820 votes against the grain of Colorado. Colorado leans Democratic overall, while 80820 runs about 20 points more Republican. Rural areas vote Republican, and 80820 sits in the bottom quarter on density (about 2%, below 97% of zip codes).
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 80820, CO sits in the bottom tenth nationally 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 80820 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 80820 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 65%, about 5 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in 80820 own their home, about 19 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 97% of adults in 80820 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.