92587 leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 68% of adults in 92587 typically vote, above the U.S. average of about 62%. Among adults in 92587, ~27% vote Democratic, ~42% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 92587 compares
Among zip codes within 15 miles, 92587 is the most Republican-leaning.
92587 runs about 43 points more Republican than California as a whole. California leans Democratic overall, while 92587 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 92587. The east side is the most Republican-leaning (R+30) and the north side is the least Republican-leaning (R+13), a spread of about 16 points.
Why 92587 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 92587, not a ranked or complete list of what matters most.
92587 votes Republican even though it is densely developed (about 74%, well above the California average of 58%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 76% of households in 92587 are family households, above 83% of zip codes. 92587 runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 92587, CA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 92587 looks the way it does
Turnout in 92587 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.