96087 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 48% of adults in 96087 typically vote, below the U.S. average of about 62%. Among adults in 96087, ~15% vote Democratic, ~33% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.
How 96087 compares
Among zip codes within 15 miles, 96087 leans more Republican than 5 of 8 neighbors.
96087 runs about 55 points more Republican than California as a whole. California leans Democratic overall, while 96087 is one of the few Republican-leaning pockets.
Why 96087 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 96087, not a ranked or complete list of what matters most.
96087 votes against the grain of California. California leans Democratic overall, while 96087 runs about 55 points more Republican. A high family-household share predicts Republican voting, and about 76% of households in 96087 are family households, above 83% of zip codes.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 96087, 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 96087 looks the way it does
Crowded housing lines up with lower turnout. About 5% of homes in 96087 have more than one occupant per room, above 87% of zip codes. Strong routine healthcare access lines up with higher turnout, and 96087 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.