93535 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 48% of adults in 93535 typically vote, below the U.S. average of about 62%. Among adults in 93535, ~29% vote Democratic, ~19% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.
How 93535 compares
Among zip codes within 15 miles, 93535 leans more Democratic than 5 of 8 neighbors.
Politically, 93535 sits close to the rest of California.
Politics vary noticeably by block within 93535. The west side runs the most Democratic (D+25) and the northeast side runs the most Republican (R+14), a spread of about 39 points.
Why 93535 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 93535, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 74% of residents in 93535 live in densely developed areas, about 37 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 44% of adults in 93535 have never been married, above 91% of zip codes.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 93535, CA sits in the bottom quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 93535 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 93535 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. High food insecurity lines up with lower turnout, and about 31% of adults in 93535 report food insecurity, above 94% of zip codes. Low high-school completion lines up with lower turnout, and about 78% of adults in 93535 have completed high school, below 93% 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.