95422 is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 51% of adults in 95422 typically vote, below the U.S. average of about 62%. Among adults in 95422, ~25% vote Democratic, ~26% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How 95422 compares
Among zip codes within 15 miles, 95422 sits roughly in the middle of the political spectrum, with 3 neighbors leaning further in the place's direction and 6 leaning the other way.
95422 runs about 20 points more Republican than California as a whole. California leans Democratic overall, while 95422 sits closer to the political middle.
Politics vary noticeably by block within 95422. The west side runs the most Democratic (D+6) and the north side runs the most Republican (R+24), a spread of about 29 points.
Why 95422 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 95422, not a ranked or complete list of what matters most.
95422 votes against the grain of California. California leans Democratic overall, while 95422 runs about 20 points more Republican.
High-school completion, developed land, and voter turnout
Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as 95422, CA does.
Why turnout in 95422 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 95422 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 48%, about 14 points below the California average of 62%. Renters vote less often than owners, and about 38% of households in 95422 rent, compared to around 23% in nearby zip codes. High food insecurity lines up with lower turnout, and about 30% of adults in 95422 report food insecurity, above 94% 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.