95328 leans slightly Republican by roughly 8 points: about 46% of voters vote Democratic and 54% Republican.
About 50% of adults in 95328 typically vote, below the U.S. average of about 62%. Among adults in 95328, ~23% vote Democratic, ~27% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How 95328 compares
Among zip codes within 15 miles, 95328 leans more Republican than 8 of 22 neighbors.
95328 runs about 28 points more Republican than California as a whole. California leans Democratic overall, while 95328 is one of the few Republican-leaning pockets.
Why 95328 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 95328, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 5% of adults in 95328 hold a bachelor's degree, about 29 points below the California average of 35%. Car-dependent areas vote Republican, and about 87% of residents in 95328 drive to work alone, above 91% of zip codes. A high family-household share predicts Republican voting, and about 85% of households in 95328 are family households, above 97% of zip codes.
High-school completion, developed land, and voter turnout
Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as 95328, CA does.
Why turnout in 95328 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 95328 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 48%, about 14 points below the California average of 62%. High food insecurity lines up with lower turnout, and about 29% of adults in 95328 report food insecurity, above 93% of zip codes. Low high-school completion lines up with lower turnout, and about 66% of adults in 95328 have completed high school, in the bottom fraction 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.