92070 leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 58% of adults in 92070 typically vote, near the U.S. average of about 62%. Among adults in 92070, ~24% vote Democratic, ~34% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How 92070 compares
Among zip codes within 15 miles, 92070 leans more Republican than 1 of 5 neighbors.
92070 runs about 38 points more Republican than California as a whole. California leans Democratic overall, while 92070 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 92070. The west side is the most Republican-leaning (R+24) and the southeast side is the least Republican-leaning (R+9), a spread of about 15 points.
Why 92070 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 92070, not a ranked or complete list of what matters most.
92070 votes against the grain of California. California leans Democratic overall, while 92070 runs about 38 points more Republican. Rural areas vote Republican, and 92070 sits in the bottom quarter on density (about 2%, below 95% of zip codes).
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 92070, CA sits in the bottom tenth 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 92070 looks the way it does
Crowded housing lines up with lower turnout. About 10% of homes in 92070 have more than one occupant per room, above 96% 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.