95466 leans heavily Democratic by roughly 46 points: about 73% of voters vote Democratic and 27% Republican.
About 56% of adults in 95466 typically vote, below the U.S. average of about 62%. Among adults in 95466, ~41% vote Democratic, ~15% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How 95466 compares
Among zip codes within 15 miles, 95466 leans more Democratic than 1 of 6 neighbors.
95466 runs about 26 points more Democratic than California as a whole.
Why 95466 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 95466, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 47% of adults in 95466 hold a bachelor's degree, about 18 points above the U.S. average of 28%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 95466, CA sits in the bottom tenth 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 95466 looks the way it does
Crowded housing lines up with lower turnout. About 5% of homes in 95466 have more than one occupant per room, above 88% of zip codes. Renters vote less often than owners, and about 36% of households in 95466 rent, above 83% 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.