96113 leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 51% of adults in 96113 typically vote, below the U.S. average of about 62%. Among adults in 96113, ~18% vote Democratic, ~33% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How 96113 compares
Among zip codes within 15 miles, 96113 is the least Republican-leaning.
96113 runs about 50 points more Republican than California as a whole. California leans Democratic overall, while 96113 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 96113. The southwest side is the most Republican-leaning (R+47) and the west side is the least Republican-leaning (R+25), a spread of about 23 points.
Why 96113 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 96113, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 6% of adults in 96113 hold a bachelor's degree, about 29 points below the California average of 35%. 96113 runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 96113, 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 96113 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 96113 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 50%, about 12 points below the California average of 62%. Renters vote less often than owners, and about 78% of households in 96113 rent, compared to around 22% in nearby zip codes. Low high-school completion lines up with lower turnout, and about 60% of adults in 96113 have completed high school, in the bottom fraction 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.