95827 leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.
About 54% of adults in 95827 typically vote, below the U.S. average of about 62%. Among adults in 95827, ~31% vote Democratic, ~23% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How 95827 compares
Among zip codes within 15 miles, 95827 leans more Democratic than 24 of 51 neighbors.
95827 runs about 7 points more Republican than California as a whole.
Politics vary noticeably by block within 95827. The north side is the most Democratic-leaning (D+23) and the east side is the least Democratic-leaning (D+6), a spread of about 17 points.
Why 95827 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 95827, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 94% of residents in 95827 live in densely developed areas, about 58 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 41% of adults in 95827 have never been married, above 88% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 95827, CA sits in the top tenth nationally on this measure.
Why turnout in 95827 looks the way it does
Renters vote less often than owners. About 39% of households in 95827 rent, about 14 points above the U.S. average of 25%. 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.