Alpine County leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 50% of adults in Alpine County typically vote, below the U.S. average of about 62%. Among adults in Alpine County, ~34% vote Democratic, ~16% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How Alpine County compares
Among counties within 50 miles, Alpine County is the most Democratic-leaning.
Alpine County runs about 16 points more Democratic than California as a whole.
Why Alpine 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 Alpine County, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 41% of adults in Alpine County hold a bachelor's degree, about 13 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 43% of adults in Alpine County have never been married, above 96% of counties.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Alpine County, CA sits in the top tenth nationally 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 Alpine County looks the way it does
Strong routine healthcare access lines up with higher turnout, and Alpine County sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Douglas County, NV R+32
- Carson City, NV R+11
- Storey County, NV R+40
- El Dorado County, CA R+13
- Lyon County, NV R+42
- Amador County, CA R+35
- Washoe County, NV D+3
- Tuolumne County, CA R+18
- Calaveras County, CA R+29
- Mineral County, NV R+40
Counties with Similar Populations
- Garfield County, MT R+87
- Skagway Municipality, AK R+23
- Stonewall County, TX R+68
- Hyde County, SD R+60
- Rock County, NE R+74
- Sheridan County, ND R+69
- Sioux County, NE R+79
- Greeley County, KS R+68
- Glasscock County, TX R+85
- Harding County, SD R+88
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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.