92359 leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 56% of adults in 92359 typically vote, below the U.S. average of about 62%. Among adults in 92359, ~23% vote Democratic, ~33% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How 92359 compares
Among zip codes within 15 miles, 92359 leans more Republican than 25 of 34 neighbors.
92359 runs about 39 points more Republican than California as a whole. California leans Democratic overall, while 92359 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 92359. The east side is the most Republican-leaning (R+39) and the west side is the least Republican-leaning (R+12), a spread of about 26 points.
Why 92359 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 92359, not a ranked or complete list of what matters most.
92359 votes Republican even though it is densely developed (about 69%, modestly above the California average of 58%). State and regional patterns outweigh the Democratic lean that density usually predicts here. 92359 runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
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 92359, CA does.
Why turnout in 92359 looks the way it does
Turnout in 92359 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.