95410 is a Democratic stronghold. About 81% of voters here vote Democratic and 19% Republican.
About 71% of adults in 95410 typically vote, above the U.S. average of about 62%. Among adults in 95410, ~57% vote Democratic, ~14% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 95410 compares
Among zip codes within 15 miles, 95410 leans more Democratic than 6 of 7 neighbors.
95410 runs about 41 points more Democratic than California as a whole.
Why 95410 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 95410, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 47% of adults in 95410 hold a bachelor's degree, about 19 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 35% of adults in 95410 have never been married, above 80% of zip codes.
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as 95410, CA does.
Why turnout in 95410 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 95410 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 69%, about 9 points above the U.S. average of 60%. 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.