Gardena, CA Political Map | Democrat & Republican Areas in Gardena

By the BestNeighborhood data science team. Last updated May 2026.

Gardena leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.

 

About 48% of adults in Gardena typically vote, below the U.S. average of about 62%. Among adults in Gardena, ~34% vote Democratic, ~14% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.

How Gardena compares

Among cities within 25 miles, Gardena leans more Democratic than 99 of 124 neighbors.

Gardena runs about 19 points more Democratic than California as a whole.

Politics vary noticeably by neighborhood within Gardena. The northwest side is the most Democratic-leaning (D+58) and the southwest side is the least Democratic-leaning (D+20), a spread of about 38 points.

Why Gardena leans the way it does

This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Gardena, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in Gardena 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 43% of adults in Gardena have never been married, above 95% of cities.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Gardena, CA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Gardena looks the way it does

Renters vote less often than owners. About 50% of households in Gardena rent, about 25 points above the U.S. average of 25%. Limited routine healthcare access lines up with lower turnout, and Gardena sits in the bottom quarter on routine-care measures. High food insecurity lines up with lower turnout, and about 23% of adults in Gardena report food insecurity, above 87% of cities. Learn more about the findings and methodology on the political spectrum map.

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.