95757 leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.
About 61% of adults in 95757 typically vote, near the U.S. average of about 62%. Among adults in 95757, ~37% vote Democratic, ~24% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 95757 compares
Among zip codes within 15 miles, 95757 leans more Democratic than 15 of 33 neighbors.
Politically, 95757 sits close to the rest of California.
Politics vary noticeably by block within 95757. The northwest side is the most Democratic-leaning (D+28) and the south side is the least Democratic-leaning (D+13), a spread of about 15 points.
Why 95757 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 95757, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 87% of residents in 95757 live in densely developed areas, about 51 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 95757 sits in the top quarter (about 44%, above 84% of zip codes).
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 95757, CA sits in the top tenth 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 95757 looks the way it does
Crowded housing lines up with lower turnout. About 5% of homes in 95757 have more than one occupant per room, above 85% 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.