92677 is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 73% of adults in 92677 typically vote, above the U.S. average of about 62%. Among adults in 92677, ~36% vote Democratic, ~37% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How 92677 compares
Among zip codes within 15 miles, 92677 sits roughly in the middle of the political spectrum, with 18 neighbors leaning further in the place's direction and 18 leaning the other way.
92677 runs about 21 points more Republican than California as a whole. California leans Democratic overall, while 92677 sits closer to the political middle.
Politics vary noticeably by block within 92677. The northeast side runs the most Democratic (D+5) and the northwest side runs the most Republican (R+6), a spread of about 11 points.
Why 92677 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 92677, not a ranked or complete list of what matters most.
92677 votes against the grain of California. California leans Democratic overall, while 92677 runs about 21 points more Republican.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 92677, CA sits in the top tenth nationally 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 92677 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 92677 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 72%, about 12 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in 92677 have completed high school, above 86% 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.