Capitol Hill is a Democratic stronghold. About 83% of voters here vote Democratic and 17% Republican.
About 68% of adults in Capitol Hill typically vote, above the U.S. average of about 62%. Among adults in Capitol Hill, ~57% vote Democratic, ~11% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Capitol Hill compares
Among neighborhoods within 5 miles, Capitol Hill leans more Democratic than 33 of 42 neighbors.
Capitol Hill runs about 56 points more Democratic than Colorado as a whole.
Politics vary noticeably by block within Capitol Hill. The east side is the most Democratic-leaning (D+75) and the northwest side is the least Democratic-leaning (D+57), a spread of about 18 points.
Why Capitol Hill leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Capitol Hill, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Capitol Hill live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Capitol Hill sits in the top quarter (about 66%, above 86% of neighborhoods). A high never-married share predicts Democratic voting, and about 70% of adults in Capitol Hill have never been married, above 98% of neighborhoods.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Capitol Hill, Denver, CO sits in the top 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 Capitol Hill looks the way it does
Turnout in Capitol Hill 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 Neighborhoods
- Golden Triangle, Denver, CO D+60
- Cheesman Park, Denver, CO D+72
- Lincoln Park, Denver, CO D+63
- City Park, Denver, CO D+73
- Alamo Placita, Denver, CO D+64
- Lodo, Denver, CO D+55
- Five Points, Denver, CO D+59
- Baker, Denver, CO D+72
- Whittier, Denver, CO D+79
- Cole, Denver, CO D+71
Neighborhoods with Similar Populations
- West Seattle, Seattle, WA D+69
- Lakewood Heights, Atlanta, GA D+83
- Woodbridge, Irvine, CA D+9
- Rice Military, Houston, TX D+22
- South Norfolk, Chesapeake, VA D+38
- Five Points, Denver, CO D+59
- Poplar-Ludlow-Yorktowne, Philadelphia, PA D+77
- Creston, Grand Rapids, MI D+25
- Pocket, Sacramento, CA D+40
- West Village, Manhattan, NY D+68
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.