Eagle County leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.
About 83% of adults in Eagle County typically vote, above the U.S. average of about 62%. Among adults in Eagle County, ~47% vote Democratic, ~35% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Eagle County compares
Among counties within 50 miles, Eagle County leans more Democratic than 1 of 4 neighbors.
Politically, Eagle County sits close to the rest of Colorado.
Politics vary noticeably by city within Eagle County. The southeast side runs the most Democratic (D+31) and the northwest side runs the most Republican (R+9), a spread of about 39 points.
Why Eagle County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Eagle County, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 51% of adults in Eagle County hold a bachelor's degree, about 22 points above the U.S. average of 28%.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Eagle County, CO sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Eagle County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Eagle County 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 67%, about 7 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 95% of adults in Eagle County have completed high school, above 94% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Pitkin County, CO D+40
- Lake County, CO D+25
- Summit County, CO D+23
- Garfield County, CO R+5
- Grand County, CO R+6
- Routt County, CO D+12
- Park County, CO R+9
- Clear Creek County, CO D+21
- Gunnison County, CO D+31
- Gilpin County, CO D+16
Counties with Similar Populations
- Campbell County, VA R+37
- Whiteside County, IL R+20
- Lafayette County, MS R+16
- La Plata County, CO D+13
- Tuolumne County, CA R+18
- Hancock County, ME D+5
- Taney County, MO R+50
- Pearl River County, MS R+60
- Marion County, WV R+37
- Cherokee County, SC R+42
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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.