95248 leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 46% of adults in 95248 typically vote, below the U.S. average of about 62%. Among adults in 95248, ~16% vote Democratic, ~30% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How 95248 compares
Among zip codes within 15 miles, 95248 leans more Republican than 12 of 15 neighbors.
95248 runs about 50 points more Republican than California as a whole. California leans Democratic overall, while 95248 is one of the few Republican-leaning pockets.
Why 95248 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 95248, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 9% of adults in 95248 hold a bachelor's degree, about 26 points below the California average of 35%. Rural areas vote Republican, and 95248 sits in the bottom quarter on density (about 3%, below 92% of zip codes). 95248 runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Republican lean
Places with low population density tend to lean Republican; 95248, CA sits in the bottom quarter nationally on this measure.
Why turnout in 95248 looks the way it does
Crowded housing lines up with lower turnout. About 20% of homes in 95248 have more than one occupant per room, in the top fraction 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.