El Dorado leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 80% of adults in El Dorado typically vote, above the U.S. average of about 62%. Among adults in El Dorado, ~28% vote Democratic, ~52% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How El Dorado compares
Among cities within 25 miles, El Dorado leans more Republican than 45 of 58 neighbors.
El Dorado runs about 50 points more Republican than California as a whole. California leans Democratic overall, while El Dorado is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within El Dorado. The southwest side is the most Republican-leaning (R+37) and the north side is the least Republican-leaning (R+26), a spread of about 11 points.
Why El Dorado 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 El Dorado, not a ranked or complete list of what matters most.
El Dorado votes against the grain of California. California leans Democratic overall, while El Dorado runs about 50 points more Republican. Dense places usually vote Democratic, but El Dorado runs against that pattern. A high family-household share predicts Republican voting, and about 78% of households in El Dorado are family households, above 84% of cities.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as El Dorado, CA does.
Why turnout in El Dorado looks the way it does
Areas with strong routine healthcare access turn out at higher rates. El Dorado 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 68%, about 8 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Diamond Springs, CA R+29
- Nashville, CA R+36
- Outingdale, CA R+34
- Placerville, CA R+21
- Shingle Springs, CA R+24
- Cold Springs, CA R+23
- Cameron Park, CA R+17
- Rescue, CA R+23
- River Pines, CA R+34
- Somerset, CA R+31
Cities with Similar Populations
- Sylvania, AL R+77
- Forest Heights, MD D+76
- Panora, IA R+37
- Damascus, VA R+58
- Wadley, GA D+44
- Eagle, NE R+45
- Marmaduke, AR R+66
- Belle, MO R+62
- Wadmalaw Island, SC D+14
- Salemburg, NC R+37
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Sources and methodology
Precinct-level voting records used to fit the model come from California 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.