95834 leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 53% of adults in 95834 typically vote, below the U.S. average of about 62%. Among adults in 95834, ~35% vote Democratic, ~18% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.
How 95834 compares
Among zip codes within 15 miles, 95834 leans more Democratic than 30 of 45 neighbors.
95834 runs about 12 points more Democratic than California as a whole.
Politics vary noticeably by block within 95834. The north side is the most Democratic-leaning (D+44) and the southwest side is the least Democratic-leaning (Even), a spread of about 42 points.
Why 95834 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 95834, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 82% of residents in 95834 live in densely developed areas, about 45 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 95834 sits in the top quarter (about 40%, above 81% of zip codes). A high never-married share predicts Democratic voting, and about 37% of adults in 95834 have never been married, above 83% of zip codes.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 95834, CA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 95834 looks the way it does
Renters vote less often than owners. About 47% of households in 95834 rent, about 23 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 6% of homes in 95834 have more than one occupant per room, above 91% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.