93920 is a Democratic stronghold. About 76% of voters here vote Democratic and 24% Republican.
About 43% of adults in 93920 typically vote, below the U.S. average of about 62%. Among adults in 93920, ~33% vote Democratic, ~10% Republican, and ~57% don't vote. The map below shows estimated turnout by block group.
How 93920 compares
93920 runs about 32 points more Democratic than California as a whole.
Politics vary noticeably by block within 93920. The northwest side runs the most Democratic (D+62) and the southeast side runs the most Republican (R+21), a spread of about 83 points.
Why 93920 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 93920, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 45% of adults in 93920 hold a bachelor's degree, about 17 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 48% of adults in 93920 have never been married, above 94% of zip codes.
Homeownership and voter turnout
Places with renter-heavy households tend to turn out at a lower rate; 93920, CA sits in the bottom tenth nationally on this measure.
Why turnout in 93920 looks the way it does
Renters vote less often than owners. About 55% of households in 93920 rent, about 30 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 21% of homes in 93920 have more than one occupant per room, in the top fraction 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.