95537 leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.
About 46% of adults in 95537 typically vote, below the U.S. average of about 62%. Among adults in 95537, ~26% vote Democratic, ~20% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How 95537 compares
Among zip codes within 15 miles, 95537 leans more Democratic than 4 of 10 neighbors.
95537 runs about 6 points more Republican than California as a whole.
Why 95537 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 95537, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 67% of adults in 95537 have never been married, far above similar-sized zip codes (around 22%).
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 95537, 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 95537 looks the way it does
Areas with low high-school completion turn out at lower rates. About 79% of adults in 95537 have completed high school, about 11 points below the U.S. average of 90%. Renters vote less often than owners, and about 36% of households in 95537 rent, above 83% of zip codes. High food insecurity lines up with lower turnout, and about 24% of adults in 95537 report food insecurity, above 87% 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.