93543 is a true toss-up. About 51% of voters here vote Democratic and 49% Republican.
About 48% of adults in 93543 typically vote, below the U.S. average of about 62%. Among adults in 93543, ~24% vote Democratic, ~24% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.
How 93543 compares
Among zip codes within 15 miles, 93543 sits roughly in the middle of the political spectrum, with 6 neighbors leaning further in the place's direction and 4 leaning the other way.
93543 runs about 19 points more Republican than California as a whole.
Politics vary noticeably by block within 93543. The northeast side runs the most Democratic (D+9) and the south side runs the most Republican (R+18), a spread of about 27 points.
Why 93543 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 93543. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 93543, CA sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 93543 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 93543 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 47%, about 15 points below the California average of 62%. High food insecurity lines up with lower turnout, and about 33% of adults in 93543 report food insecurity, above 96% of zip codes. Low high-school completion lines up with lower turnout, and about 71% of adults in 93543 have completed high school, below 97% 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.