East Ridge-Ptarmigan Park leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About 68% of adults in East Ridge-Ptarmigan Park typically vote, above the U.S. average of about 62%. Among adults in East Ridge-Ptarmigan Park, ~46% vote Democratic, ~22% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How East Ridge-Ptarmigan Park compares
Among neighborhoods within 5 miles, East Ridge-Ptarmigan Park leans more Democratic than 27 of 41 neighbors.
East Ridge-Ptarmigan Park runs about 23 points more Democratic than Colorado as a whole.
Politics vary noticeably by block within East Ridge-Ptarmigan Park. The north side is the most Democratic-leaning (D+40) and the west side is the least Democratic-leaning (D+24), a spread of about 16 points.
Why East Ridge-Ptarmigan Park 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 East Ridge-Ptarmigan Park, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in East Ridge-Ptarmigan Park live in densely developed areas, about 64 points above the U.S. average of 36%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; East Ridge-Ptarmigan Park, Aurora, CO sits above the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in East Ridge-Ptarmigan Park looks the way it does
Turnout in East Ridge-Ptarmigan Park 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
Neighborhoods 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.