90746 is a Democratic stronghold. About 83% of voters here vote Democratic and 17% Republican.
About 62% of adults in 90746 typically vote, near the U.S. average of about 62%. Among adults in 90746, ~51% vote Democratic, ~11% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How 90746 compares
Among zip codes within 15 miles, 90746 leans more Democratic than 119 of 125 neighbors.
90746 runs about 47 points more Democratic than California as a whole.
Politics vary noticeably by block within 90746. The east side is the most Democratic-leaning (D+80) and the west side is the least Democratic-leaning (D+40), a spread of about 40 points.
Why 90746 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 90746, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 90746 live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 41% of adults in 90746 have never been married, above 88% of zip codes.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 90746, CA sits in the top tenth 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 90746 looks the way it does
Turnout in 90746 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.