95690 leans slightly Republican by roughly 8 points: about 46% of voters vote Democratic and 54% Republican.
About 42% of adults in 95690 typically vote, below the U.S. average of about 62%. Among adults in 95690, ~19% vote Democratic, ~23% Republican, and ~58% don't vote. The map below shows estimated turnout by block group.
How 95690 compares
Among zip codes within 15 miles, 95690 leans more Republican than 5 of 11 neighbors.
95690 runs about 29 points more Republican than California as a whole. California leans Democratic overall, while 95690 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 95690. The northwest side runs the most Democratic (D+17) and the southeast side runs the most Republican (R+26), a spread of about 43 points.
Why 95690 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 95690, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in 95690 live in densely developed areas, about 54 points below the California average of 58%. 95690 runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Developed land and Republican lean
Places with a rural land-use pattern tend to lean Republican; 95690, CA sits in the bottom quarter nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 95690 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 95690 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 47% of households in 95690 rent, about 22 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 15% of homes in 95690 have more than one occupant per room, above 98% 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.