92251 leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 44% of adults in 92251 typically vote, below the U.S. average of about 62%. Among adults in 92251, ~18% vote Democratic, ~26% Republican, and ~56% don't vote. The map below shows estimated turnout by block group.
How 92251 compares
Among zip codes within 15 miles, 92251 is the most Republican-leaning.
92251 runs about 36 points more Republican than California as a whole. California leans Democratic overall, while 92251 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 92251. The southwest side is the most Republican-leaning (R+27) and the south side is the least Republican-leaning (R+7), a spread of about 20 points.
Why 92251 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 92251, not a ranked or complete list of what matters most.
92251 votes against the grain of California. California leans Democratic overall, while 92251 runs about 36 points more Republican. A high family-household share predicts Republican voting, and about 77% of households in 92251 are family households, above 86% of zip codes.
High-school completion, developed land, and voter turnout
Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as 92251, CA does.
Why turnout in 92251 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 92251 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. High food insecurity lines up with lower turnout, and about 27% of adults in 92251 report food insecurity, above 91% of zip codes. Low high-school completion lines up with lower turnout, and about 79% of adults in 92251 have completed high school, below 92% 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.