90210 leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 84% of adults in 90210 typically vote, above the U.S. average of about 62%. Among adults in 90210, ~45% vote Democratic, ~39% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How 90210 compares
Among zip codes within 15 miles, 90210 leans more Democratic than 3 of 147 neighbors.
90210 runs about 15 points more Republican than California as a whole.
Politics vary noticeably by block within 90210. The southeast side runs the most Democratic (D+17) and the southwest side runs the most Republican (R+20), a spread of about 37 points.
Why 90210 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 90210, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 67% of adults in 90210 hold a bachelor's degree, about 39 points above the U.S. average of 28%. Dense areas vote Democratic, and 90210 sits in the top fifth on density (about 88%, above 87% of zip codes).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 90210, CA sits in the top quarter 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 90210 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 90210 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 about 97% of adults in 90210 have completed high school, above 87% 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.