95951 is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 39% of adults in 95951 typically vote, below the U.S. average of about 62%. Among adults in 95951, ~20% vote Democratic, ~20% Republican, and ~60% don't vote. The map below shows estimated turnout by block group.
How 95951 compares
Among zip codes within 15 miles, 95951 sits roughly in the middle of the political spectrum, with 3 neighbors leaning further in the place's direction and 5 leaning the other way.
95951 runs about 21 points more Republican than California as a whole. California leans Democratic overall, while 95951 sits closer to the political middle.
Politics vary noticeably by block within 95951. The north side runs the most Democratic (D+12) and the southeast side runs the most Republican (R+29), a spread of about 41 points.
Why 95951 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 95951, not a ranked or complete list of what matters most.
95951 votes against the grain of California. California leans Democratic overall, while 95951 runs about 21 points more Republican.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 95951, CA sits below 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 95951 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 95951 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 40% of households in 95951 rent, above 86% of zip codes. High food insecurity lines up with lower turnout, and about 23% of adults in 95951 report food insecurity, 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.