95209 leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 56% of adults in 95209 typically vote, below the U.S. average of about 62%. Among adults in 95209, ~30% vote Democratic, ~26% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How 95209 compares
Among zip codes within 15 miles, 95209 leans more Democratic than 12 of 21 neighbors.
95209 runs about 12 points more Republican than California as a whole.
Politics vary noticeably by block within 95209. The southwest side runs the most Democratic (D+20) and the northeast side runs the most Republican (R+5), a spread of about 25 points.
Why 95209 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 95209, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 96% of residents in 95209 live in densely developed areas, about 59 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 35% of adults in 95209 have never been married, above 79% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 95209, CA sits in the top tenth nationally on this measure.
Why turnout in 95209 looks the way it does
Crowded housing lines up with lower turnout. About 6% of homes in 95209 have more than one occupant per room, above 89% 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.