93001 leans Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.
About 62% of adults in 93001 typically vote, near the U.S. average of about 62%. Among adults in 93001, ~40% vote Democratic, ~22% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How 93001 compares
Among zip codes within 15 miles, 93001 leans more Democratic than 11 of 13 neighbors.
93001 runs about 9 points more Democratic than California as a whole.
Politics vary noticeably by block within 93001. The southwest side runs the most Democratic (D+49) and the northeast side runs the most Republican (R+4), a spread of about 52 points.
Why 93001 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 93001, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 38% of adults in 93001 hold a bachelor's degree, about 10 points above the U.S. average of 28%. Density combined with diversity predicts Democratic voting, and non-Hispanic white share in 93001 is about 49%, about 23 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 39% of adults in 93001 have never been married, above 86% of zip codes.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 93001, CA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 93001 looks the way it does
Renters vote less often than owners. About 54% of households in 93001 rent, about 29 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 7% of homes in 93001 have more than one occupant per room, above 93% of zip codes. Low high-school completion lines up with lower turnout, and about 87% of adults in 93001 have completed high school, below 75% 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.