95553 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 60% of adults in 95553 typically vote, near the U.S. average of about 62%. Among adults in 95553, ~36% vote Democratic, ~24% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How 95553 compares
Among zip codes within 15 miles, 95553 leans more Democratic than 4 of 9 neighbors.
Politically, 95553 sits close to the rest of California.
Why 95553 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 95553, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 42% of adults in 95553 have never been married, well above similar-sized zip codes (around 26%).
Food insecurity and voter turnout
Places with high food insecurity tend to turn out at a lower rate; 95553, CA sits in the top quarter nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in 95553 looks the way it does
Areas with high food insecurity turn out at lower rates. About 23% of adults in 95553 report food insecurity, about 7 points above the U.S. average of 16%. Low high-school completion lines up with lower turnout, and about 86% of adults in 95553 have completed high school, below 77% 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.