Volta, CA Political Map | Democrat & Republican Areas in Volta

Volta leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.

 
Volta, CA block-group political-lean map
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About 20% of adults in Volta typically vote, below the U.S. average of about 62%. Among adults in Volta, ~8% vote Democratic, ~12% Republican, and ~80% don't vote. The map below shows estimated turnout by block group.

Volta, CA block-group voter-turnout map
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How Volta compares

Among cities within 25 miles, Volta leans more Republican than 5 of 12 neighbors.

Volta runs about 39 points more Republican than California as a whole. California leans Democratic overall, while Volta is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Volta. The northwest side runs the most Democratic (D+14) and the northeast side runs the most Republican (R+23), a spread of about 37 points.

Why Volta 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 Volta, not a ranked or complete list of what matters most.

Volta votes against the grain of California. California leans Democratic overall, while Volta runs about 39 points more Republican. Rural areas vote Republican, and Volta sits in the bottom quarter on density (about 2%, below 95% of cities).

Cancer-screening access and voter turnout

Places with low colon-cancer-screening access tend to turn out at a lower rate; Volta, CA sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in Volta looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Volta is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 20%, about 10 points above the California average of 10%. Renters vote less often than owners, and about 60% of households in Volta rent, about 35 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 31% of adults in Volta report food insecurity, above 96% of cities. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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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.