95549 leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.
About 61% of adults in 95549 typically vote, near the U.S. average of about 62%. Among adults in 95549, ~43% vote Democratic, ~18% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 95549 compares
Among zip codes within 15 miles, 95549 leans more Democratic than 9 of 11 neighbors.
95549 runs about 20 points more Democratic than California as a whole.
Politics vary noticeably by block within 95549. The northwest side runs the most Democratic (D+44) and the west side runs the most Republican (R+19), a spread of about 63 points.
Why 95549 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 95549, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 51% of adults in 95549 hold a bachelor's degree, about 23 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 35% of adults in 95549 have never been married, above 79% of zip codes.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 95549, CA sits in the bottom 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 95549 looks the way it does
Crowded housing lines up with lower turnout. About 4% of homes in 95549 have more than one occupant per room, above 83% 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.