East Boulder is a Democratic stronghold. About 80% of voters here vote Democratic and 20% Republican.
About 85% of adults in East Boulder typically vote, above the U.S. average of about 62%. Among adults in East Boulder, ~68% vote Democratic, ~17% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How East Boulder compares
Among neighborhoods within 5 miles, East Boulder is the least Democratic-leaning.
East Boulder runs about 50 points more Democratic than Colorado as a whole.
Politics vary noticeably by block within East Boulder. The northwest side is the most Democratic-leaning (D+73) and the southeast side is the least Democratic-leaning (D+27), a spread of about 46 points.
Why East Boulder 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 Boulder, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 65% of adults in East Boulder hold a bachelor's degree, about 36 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 48% of adults in East Boulder have never been married, above 79% of neighborhoods.
Developed land, local retail density, and voter turnout
Places that combine a rural land-use pattern and dense local retail within a mile tend to turn out at a higher rate, as East Boulder, Boulder, CO does.
Why turnout in East Boulder looks the way it does
Turnout in East Boulder 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
- Crossroads, Boulder, CO D+73
- Palo Park, Boulder, CO D+64
- Southeast Boulder, Boulder, CO D+69
- Colorado University, Boulder, CO D+62
- Central Boulder, Boulder, CO D+71
- Washington Village, Boulder, CO D+77
- North Boulder, Boulder, CO D+72
- South Boulder, Boulder, CO D+76
- Walnut Grove, Broomfield, CO D+15
- Brandywine, Broomfield, CO D+24
Neighborhoods with Similar Populations
- Westminster Heights, St. Petersburg, FL D+45
- Crossley Crossing, Round Rock, TX Even
- Harper's Landing, Conroe, TX R+28
- Meadowbrook, Seattle, WA D+74
- Southmoreland, Kansas City, MO D+70
- Montlake, Seattle, WA D+83
- Manhattan Beach, Brooklyn, NY R+51
- Historic West-Side, Springfield, IL D+39
- Wendover-Sedgewood, Charlotte, NC D+16
- Downtown Carlsbad, Carlsbad, CA D+24
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.