92311 leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 41% of adults in 92311 typically vote, below the U.S. average of about 62%. Among adults in 92311, ~18% vote Democratic, ~23% Republican, and ~59% don't vote. The map below shows estimated turnout by block group.
How 92311 compares
Among zip codes within 15 miles, 92311 is the least Republican-leaning.
92311 runs about 33 points more Republican than California as a whole. California leans Democratic overall, while 92311 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 92311. The northwest side is the most split-leaning (R+43) and the east side is the least split-leaning (R+3), a spread of about 40 points.
Why 92311 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 92311, not a ranked or complete list of what matters most.
92311 votes against the grain of California. California leans Democratic overall, while 92311 runs about 33 points more Republican. Low college attainment predicts Republican voting, and 92311 sits in the bottom quarter (about 14%, below 86% of zip codes).
Homeownership and voter turnout
Places with renter-heavy households tend to turn out at a lower rate; 92311, CA sits in the bottom tenth nationally on this measure.
Why turnout in 92311 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 92311 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 50% of households in 92311 rent, compared to around 34% in nearby zip codes. High food insecurity lines up with lower turnout, and about 29% of adults in 92311 report food insecurity, above 93% 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.