90293 leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 69% of adults in 90293 typically vote, above the U.S. average of about 62%. Among adults in 90293, ~50% vote Democratic, ~19% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 90293 compares
Among zip codes within 15 miles, 90293 leans more Democratic than 45 of 114 neighbors.
90293 runs about 24 points more Democratic than California as a whole.
Why 90293 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 90293, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 91% of residents in 90293 live in densely developed areas, about 55 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 90293 sits in the top quarter (about 74%, above 98% of zip codes). A high never-married share predicts Democratic voting, and about 40% of adults in 90293 have never been married, above 87% of zip codes.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 90293, CA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 90293 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 90293 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 76%, about 16 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and more than 99% of adults in 90293 have completed high school, above 98% 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.