96017 leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 69% of adults in 96017 typically vote, above the U.S. average of about 62%. Among adults in 96017, ~27% vote Democratic, ~42% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 96017 compares
Among zip codes within 15 miles, 96017 is the most Republican-leaning.
96017 runs about 43 points more Republican than California as a whole. California leans Democratic overall, while 96017 is one of the few Republican-leaning pockets.
Why 96017 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 96017, not a ranked or complete list of what matters most.
96017 votes against the grain of California. California leans Democratic overall, while 96017 runs about 43 points more Republican.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 96017, CA sits in the bottom quarter 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 96017 looks the way it does
Homeowners vote more often than renters. About 90% of households in 96017 own their home, about 28 points above the California average of 62%. 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.