92131 leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.
About 82% of adults in 92131 typically vote, above the U.S. average of about 62%. Among adults in 92131, ~50% vote Democratic, ~32% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 92131 compares
Among zip codes within 15 miles, 92131 leans more Democratic than 19 of 49 neighbors.
Politically, 92131 sits close to the rest of California.
Politics vary noticeably by block within 92131. The southwest side is the most Democratic-leaning (D+28) and the southeast side is the least Democratic-leaning (D+12), a spread of about 15 points.
Why 92131 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 92131, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 72% of adults in 92131 hold a bachelor's degree, about 43 points above the U.S. average of 28%. Dense areas vote Democratic, and 92131 sits in the top fifth on density (about 80%, above 83% of zip codes).
Population density and Democratic lean
Places with high population density tend to lean Democratic; 92131, CA sits in the top quarter nationally on this measure.
Why turnout in 92131 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 92131 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 74%, about 14 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in 92131 have completed high school, above 95% 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.