95542 leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.
About 55% of adults in 95542 typically vote, below the U.S. average of about 62%. Among adults in 95542, ~33% vote Democratic, ~21% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How 95542 compares
Among zip codes within 15 miles, 95542 leans more Democratic than 5 of 7 neighbors.
Politically, 95542 sits close to the rest of California.
Politics vary noticeably by block within 95542. The southeast side is the most Democratic-leaning (D+28) and the northwest side is the least Democratic-leaning (D+14), a spread of about 14 points.
Why 95542 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 95542, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 38% of adults in 95542 have never been married, modestly above similar-sized zip codes (around 28%).
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 95542, CA sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 95542 looks the way it does
Areas with high food insecurity turn out at lower rates. About 22% of adults in 95542 report food insecurity, about 6 points above the U.S. average of 16%. 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.