81648 is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 93% of adults in 81648 typically vote, above the U.S. average of about 62%. Among adults in 81648, ~21% vote Democratic, ~72% Republican, and ~7% don't vote. The map below shows estimated turnout by block group.
How 81648 compares
81648 runs about 65 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while 81648 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 81648. The southwest side is the most Republican-leaning (R+74) and the north side is the least Republican-leaning (R+48), a spread of about 26 points.
Why 81648 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 81648, not a ranked or complete list of what matters most.
81648 votes against the grain of Colorado. Colorado leans Democratic overall, while 81648 runs about 65 points more Republican. Low college attainment predicts Republican voting, and 81648 sits in the bottom quarter (about 15%, below 80% of zip codes).
Park access and Republican lean
Places with low park coverage tend to lean Republican; 81648, CO sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 81648 looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in 81648 have completed high school, about 5 points above the Colorado average of 93%. 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.