Highlands Ranch is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.
About 91% of adults in Highlands Ranch typically vote, above the U.S. average of about 62%. Among adults in Highlands Ranch, ~47% vote Democratic, ~44% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How Highlands Ranch compares
Among cities within 25 miles, Highlands Ranch leans more Democratic than 26 of 65 neighbors.
Highlands Ranch runs about 7 points more Republican than Colorado as a whole.
Politics vary noticeably by neighborhood within Highlands Ranch. The northwest side runs the most Democratic (D+10) and the southwest side runs the most Republican (Even), a spread of about 12 points.
Why Highlands Ranch leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Highlands Ranch. The lean here lands roughly where demographic data alone would predict.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Highlands Ranch, CO sits in the top tenth nationally on this measure.
Why turnout in Highlands Ranch looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Highlands Ranch 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 76%, about 16 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 99% of adults in Highlands Ranch have completed high school, above 98% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lone Tree, CO D+5
- Louviers, CO R+18
- Englewood, CO D+27
- Castle Pines North, CO R+8
- Littleton, CO D+17
- Columbine Valley, CO R+5
- Meridian, CO D+19
- Columbine, CO D+3
- Greenwood Village, CO D+19
- Centennial, CO D+16
Cities with Similar Populations
- Davenport, IA D+14
- Lewisville, TX D+9
- Ypsilanti, MI D+48
- West Chester, PA D+20
- New Port Richey, FL R+27
- El Monte, CA D+26
- Antioch, TN D+28
- Homestead, FL R+5
- Burbank, CA D+28
- North Hills, CA D+26
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.