Hillside leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 82% of adults in Hillside typically vote, above the U.S. average of about 62%. Among adults in Hillside, ~29% vote Democratic, ~54% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Hillside compares
Among cities within 25 miles, Hillside leans more Republican than 6 of 22 neighbors.
Hillside runs about 41 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while Hillside is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Hillside. The northwest side is the most Republican-leaning (R+45) and the south side is the least Republican-leaning (R+16), a spread of about 29 points.
Why Hillside leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Hillside, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in Hillside live in densely developed areas, about 34 points below the Colorado average of 35%. Hillside runs against the grain of Colorado, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Republican lean
Places with low population density tend to lean Republican; Hillside, CO sits in the bottom quarter nationally on this measure.
Why turnout in Hillside looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Hillside 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 64%, above 64% of cities. Homeowners vote more often than renters, and about 92% of households in Hillside own their home, about 17 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Cotopaxi, CO R+38
- Silver Cliff, CO R+38
- Texas Creek, CO R+39
- Westcliffe, CO R+32
- Prospect Heights, CO R+41
- Tanglewood Acres, CO R+6
- Coaldale, CO R+45
- Lincoln Park, CO R+28
- Buckskin Joe, CO R+42
- Canon City, CO R+22
Cities with Similar Populations
- Stoutsville, MO R+63
- Mount Wilson, PA R+35
- Pine Hill, NY D+8
- Sirmans, FL R+62
- Hunter, ND R+44
- Rexville, WA D+9
- Points, WV R+63
- Drifton, FL D+7
- East Dickinson, NY R+43
- Geneva, KY R+56
All Local Stats
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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.