96001 leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About 73% of adults in 96001 typically vote, above the U.S. average of about 62%. Among adults in 96001, ~29% vote Democratic, ~44% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How 96001 compares
Among zip codes within 15 miles, 96001 is the least Republican-leaning.
96001 runs about 41 points more Republican than California as a whole. California leans Democratic overall, while 96001 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 96001. The southwest side is the most split-leaning (R+34) and the northeast side is the least split-leaning (R+2), a spread of about 31 points.
Why 96001 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 96001, not a ranked or complete list of what matters most.
96001 votes Republican even though it is densely developed (about 70%, modestly above the California average of 58%). State and regional patterns outweigh the Democratic lean that density usually predicts here. 96001 runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 96001, CA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 96001 looks the way it does
Turnout in 96001 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.