92342 leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 67% of adults in 92342 typically vote, near the U.S. average of about 62%. Among adults in 92342, ~23% vote Democratic, ~44% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 92342 compares
Among zip codes within 15 miles, 92342 is the most Republican-leaning.
92342 runs about 49 points more Republican than California as a whole. California leans Democratic overall, while 92342 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 92342. The north side is the most Republican-leaning (R+38) and the east side is the least Republican-leaning (R+18), a spread of about 19 points.
Why 92342 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 92342, not a ranked or complete list of what matters most.
92342 votes against the grain of California. California leans Democratic overall, while 92342 runs about 49 points more Republican. Car-dependent areas vote Republican, and about 83% of residents in 92342 drive to work alone, above 81% of zip codes. A high family-household share predicts Republican voting, and about 76% of households in 92342 are family households, above 83% of zip codes.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 92342, CA sits above 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 92342 looks the way it does
Turnout in 92342 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.