80137 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 71% of adults in 80137 typically vote, above the U.S. average of about 62%. Among adults in 80137, ~22% vote Democratic, ~49% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 80137 compares
Among zip codes within 15 miles, 80137 leans more Republican than 13 of 15 neighbors.
80137 runs about 50 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while 80137 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 80137. The southwest side runs the most Democratic (D+2) and the northeast side runs the most Republican (R+47), a spread of about 49 points.
Why 80137 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 80137, not a ranked or complete list of what matters most.
80137 votes against the grain of Colorado. Colorado leans Democratic overall, while 80137 runs about 50 points more Republican. A high family-household share predicts Republican voting, and about 76% of households in 80137 are family households, above 82% of zip codes.
Population density and Republican lean
Places with low population density tend to lean Republican; 80137, CO sits below the national average on this measure.
Why turnout in 80137 looks the way it does
Homeowners vote more often than renters. About 92% of households in 80137 own their home, about 17 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.