96120 leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 50% of adults in 96120 typically vote, below the U.S. average of about 62%. Among adults in 96120, ~34% vote Democratic, ~16% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How 96120 compares
Among zip codes within 15 miles, 96120 is the most Democratic-leaning.
96120 runs about 16 points more Democratic than California as a whole.
Why 96120 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 96120, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 41% of adults in 96120 hold a bachelor's degree, about 13 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 43% of adults in 96120 have never been married, above 90% of zip codes.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 96120, CA sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 96120 looks the way it does
Strong routine healthcare access lines up with higher turnout, and 96120 sits in the top quarter on routine-care measures. 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.