Prospect Heights leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 83% of adults in Prospect Heights typically vote, above the U.S. average of about 62%. Among adults in Prospect Heights, ~25% vote Democratic, ~58% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Prospect Heights compares
Among cities within 25 miles, Prospect Heights leans more Republican than 13 of 20 neighbors.
Prospect Heights runs about 52 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while Prospect Heights is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Prospect Heights. The southwest side is the most Republican-leaning (R+42) and the northeast side is the least Republican-leaning (R+24), a spread of about 19 points.
Why Prospect Heights 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 Prospect Heights, not a ranked or complete list of what matters most.
Prospect Heights votes against the grain of Colorado. Colorado leans Democratic overall, while Prospect Heights runs about 52 points more Republican. A high family-household share predicts Republican voting, and about 80% of households in Prospect Heights are family households, above 89% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Prospect Heights, CO sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Prospect Heights looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Prospect Heights 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 66%, about 6 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 98% of households in Prospect Heights own their home, compared to around 83% in nearby cities. High high-school completion lines up with higher turnout, and more than 99% of adults in Prospect Heights have completed high school, in the top fraction of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lincoln Park, CO R+28
- Brookside, CO R+34
- Canon City, CO R+22
- Rockvale, CO R+53
- Williamsburg, CO R+12
- Florence, CO R+17
- Buckskin Joe, CO R+42
- Cotopaxi, CO R+38
- Hillside, CO R+30
- Park Center, CO R+36
Cities with Similar Populations
- Hondo, NM R+46
- Rufus, OR R+56
- Rubottom, OK R+71
- Indian Creek, TX R+80
- Bryants Store, KY R+75
- Whitharral, TX R+82
- Tabor, MN R+51
- Skykomish, WA D+17
- Portland, FL R+52
- Warner, IL R+33
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.