93552 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 46% of adults in 93552 typically vote, below the U.S. average of about 62%. Among adults in 93552, ~28% vote Democratic, ~18% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How 93552 compares
Among zip codes within 15 miles, 93552 leans more Democratic than 8 of 10 neighbors.
Politically, 93552 sits close to the rest of California.
Politics vary noticeably by block within 93552. The north side is the most Democratic-leaning (D+25) and the southwest side is the least Democratic-leaning (D+12), a spread of about 13 points.
Why 93552 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 93552, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 74% of residents in 93552 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 43% of adults in 93552 have never been married, above 90% of zip codes.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 93552, 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 93552 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 93552 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 29% of adults in 93552 report food insecurity, above 93% of zip codes. Low high-school completion lines up with lower turnout, and about 75% of adults in 93552 have completed high school, below 96% 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.