94573 leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About 61% of adults in 94573 typically vote, near the U.S. average of about 62%. Among adults in 94573, ~41% vote Democratic, ~20% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 94573 compares
Among zip codes within 15 miles, 94573 leans more Democratic than 4 of 15 neighbors.
94573 runs about 14 points more Democratic than California as a whole.
Why 94573 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 94573, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 54% of adults in 94573 hold a bachelor's degree, about 25 points above the U.S. average of 28%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 94573, CA sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 94573 looks the way it does
Renters vote less often than owners. About 35% of households in 94573 rent, about 10 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and 94573 sits in the top quarter on routine-care measures. Crowded housing lines up with lower turnout, and about 5% of homes in 94573 have more than one occupant per room, above 84% 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.