92258 leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.
About 42% of adults in 92258 typically vote, below the U.S. average of about 62%. Among adults in 92258, ~24% vote Democratic, ~18% Republican, and ~58% don't vote. The map below shows estimated turnout by block group.
How 92258 compares
Among zip codes within 15 miles, 92258 leans more Democratic than 6 of 12 neighbors.
92258 runs about 6 points more Republican than California as a whole.
Why 92258 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 92258. The lean here lands roughly where demographic data alone would predict.
High-school completion, uninsured rate, and voter turnout
Places that combine low high-school-completion share and a high uninsured rate tend to turn out at a lower rate, as 92258, CA does.
Why turnout in 92258 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 92258 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 30% of adults in 92258 report food insecurity, above 94% of zip codes. Low high-school completion lines up with lower turnout, and about 77% of adults in 92258 have completed high school, below 94% 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.