93527 leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 59% of adults in 93527 typically vote, near the U.S. average of about 62%. Among adults in 93527, ~18% vote Democratic, ~42% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How 93527 compares
93527 runs about 60 points more Republican than California as a whole. California leans Democratic overall, while 93527 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 93527. The northwest side is the most Republican-leaning (R+43) and the west side is the least Republican-leaning (R+32), a spread of about 11 points.
Why 93527 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 93527, not a ranked or complete list of what matters most.
93527 votes against the grain of California. California leans Democratic overall, while 93527 runs about 60 points more Republican. Rural areas vote Republican, and 93527 sits in the bottom quarter on density (about 3%, below 94% of zip codes).
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 93527, 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 93527 looks the way it does
Turnout in 93527 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.