94105 is a Democratic stronghold. About 79% of voters here vote Democratic and 21% Republican.
About 54% of adults in 94105 typically vote, below the U.S. average of about 62%. Among adults in 94105, ~43% vote Democratic, ~11% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How 94105 compares
Among zip codes within 15 miles, 94105 leans more Democratic than 35 of 81 neighbors.
94105 runs about 38 points more Democratic than California as a whole.
Why 94105 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 94105, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 95% of residents in 94105 live in densely developed areas, about 59 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 94105 sits in the top quarter (about 84%, in the top fraction of zip codes). A high never-married share predicts Democratic voting, and about 51% of adults in 94105 have never been married, above 95% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 94105, CA sits in the top tenth nationally on this measure.
Why turnout in 94105 looks the way it does
Renters vote less often than owners. About 65% of households in 94105 rent, about 40 points above the U.S. average of 25%. High-crime urban areas turn out at lower rates, and 94105 sits in the top 15% on a violent-crime measure. 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.