93106 is a Democratic stronghold. About 90% of voters here vote Democratic and 10% Republican.
About 95% of adults in 93106 typically vote, above the U.S. average of about 62%. Among adults in 93106, ~86% vote Democratic, ~9% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How 93106 compares
Among zip codes within 15 miles, 93106 is the most Democratic-leaning.
93106 runs about 60 points more Democratic than California as a whole.
Why 93106 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 93106, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 88% of adults in 93106 hold a bachelor's degree, about 60 points above the U.S. average of 28%. Dense areas vote Democratic, and 93106 sits in the top fifth on density (about 77%, above 81% of zip codes). A high never-married share predicts Democratic voting, and about 97% of adults in 93106 have never been married, in the top fraction of zip codes.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; 93106, CA sits in the top tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 93106 looks the way it does
Turnout in 93106 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.