93251 leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 34% of adults in 93251 typically vote, below the U.S. average of about 62%. Among adults in 93251, ~10% vote Democratic, ~24% Republican, and ~66% don't vote. The map below shows estimated turnout by block group.
How 93251 compares
93251 sits in a sparsely populated area with few comparable zip codes nearby.
93251 runs about 64 points more Republican than California as a whole. California leans Democratic overall, while 93251 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 93251. The north side runs the most Democratic (D+8) and the west side runs the most Republican (R+82), a spread of about 90 points.
Why 93251 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 93251, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 7% of adults in 93251 hold a bachelor's degree, about 27 points below the California average of 35%. A high family-household share predicts Republican voting, and about 80% of households in 93251 are family households, above 92% of zip codes. 93251 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; 93251, CA sits in the bottom tenth nationally on this measure.
Why turnout in 93251 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 93251 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 45%, about 17 points below the California average of 62%. Renters vote less often than owners, and about 43% of households in 93251 rent, about 18 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 34% of adults in 93251 report food insecurity, above 96% 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.