93451 leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 53% of adults in 93451 typically vote, below the U.S. average of about 62%. Among adults in 93451, ~22% vote Democratic, ~31% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.
How 93451 compares
93451 sits in a sparsely populated area with few comparable zip codes nearby.
93451 runs about 36 points more Republican than California as a whole. California leans Democratic overall, while 93451 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 93451. The southeast side is the most Republican-leaning (R+49) and the southwest side is the least Republican-leaning (R+4), a spread of about 45 points.
Why 93451 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 93451, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 82% of households in 93451 are family households, about 16 points above the U.S. average of 67%. 93451 runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
High-school completion and voter turnout
Places with low high-school-completion share tend to turn out at a lower rate; 93451, CA sits in the bottom tenth nationally on this measure.
Why turnout in 93451 looks the way it does
Crowded housing lines up with lower turnout. About 8% of homes in 93451 have more than one occupant per room, above 94% of zip codes. Renters vote less often than owners, and about 40% of households in 93451 rent, above 86% 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.