92220 is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.
About 51% of adults in 92220 typically vote, below the U.S. average of about 62%. Among adults in 92220, ~24% vote Democratic, ~27% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How 92220 compares
Among zip codes within 15 miles, 92220 leans more Republican than 2 of 11 neighbors.
92220 runs about 24 points more Republican than California as a whole. California leans Democratic overall, while 92220 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 92220. The east side runs the most Democratic (D+16) and the north side runs the most Republican (R+17), a spread of about 32 points.
Why 92220 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 92220, not a ranked or complete list of what matters most.
92220 votes against the grain of California. California leans Democratic overall, while 92220 runs about 24 points more Republican.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 92220, CA sits below the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 92220 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 92220 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 25% of adults in 92220 report food insecurity, above 89% of zip codes. Low high-school completion lines up with lower turnout, and about 81% of adults in 92220 have completed high school, below 89% 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.