93429 is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.
About 12% of adults in 93429 typically vote, below the U.S. average of about 62%. Among adults in 93429, ~6% vote Democratic, ~6% Republican, and ~88% don't vote. The map below shows estimated turnout by block group.
How 93429 compares
Among zip codes within 15 miles, 93429 leans more Democratic than 3 of 7 neighbors.
93429 runs about 16 points more Republican than California as a whole.
Politics vary noticeably by block within 93429. The south side runs the most Democratic (D+5) and the northeast side runs the most Republican (R+30), a spread of about 36 points.
Why 93429 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 93429. The lean here lands roughly where demographic data alone would predict.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 93429, CA sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 93429 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 93429 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 23%, about 13 points above the California average of 10%. Renters vote less often than owners, and about 49% of households in 93429 rent, about 24 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 33% of adults in 93429 report food insecurity, above 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.