93218 leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 37% of adults in 93218 typically vote, below the U.S. average of about 62%. Among adults in 93218, ~16% vote Democratic, ~21% Republican, and ~63% don't vote. The map below shows estimated turnout by block group.
How 93218 compares
Among zip codes within 15 miles, 93218 is the most Republican-leaning.
93218 runs about 37 points more Republican than California as a whole. California leans Democratic overall, while 93218 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 93218. The southeast side is the most Republican-leaning (R+46) and the southwest side is the least Republican-leaning (R+4), a spread of about 42 points.
Why 93218 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 93218, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 8% of adults in 93218 hold a bachelor's degree, about 26 points below the California average of 35%. A high family-household share predicts Republican voting, and about 92% of households in 93218 are family households, in the top fraction of zip codes. 93218 runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as 93218, CA does.
Why turnout in 93218 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 93218 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 47%, about 15 points below the California average of 62%. High food insecurity lines up with lower turnout, and about 28% of adults in 93218 report food insecurity, above 92% of zip codes. Low high-school completion lines up with lower turnout, and about 58% of adults in 93218 have completed high school, in the bottom fraction 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.