90069 is a Democratic stronghold. About 78% of voters here vote Democratic and 22% Republican.
About 63% of adults in 90069 typically vote, near the U.S. average of about 62%. Among adults in 90069, ~49% vote Democratic, ~14% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 90069 compares
Among zip codes within 15 miles, 90069 leans more Democratic than 131 of 158 neighbors.
90069 runs about 36 points more Democratic than California as a whole.
Politics vary noticeably by block within 90069. The northeast side is the most Democratic-leaning (D+61) and the northwest side is the least Democratic-leaning (D+49), a spread of about 12 points.
Why 90069 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 90069, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 90069 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 90069 sits in the top quarter (about 72%, above 98% of zip codes). A high never-married share predicts Democratic voting, and about 61% of adults in 90069 have never been married, above 98% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 90069, CA sits in the top tenth nationally on this measure.
Why turnout in 90069 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 90069 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 72%, about 12 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in 90069 have completed high school, 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.