South Gate leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 38% of adults in South Gate typically vote, below the U.S. average of about 62%. Among adults in South Gate, ~26% vote Democratic, ~12% Republican, and ~62% don't vote. The map below shows estimated turnout by block group.
How South Gate compares
Among cities within 25 miles, South Gate leans more Democratic than 109 of 141 neighbors.
South Gate runs about 16 points more Democratic than California as a whole.
Why South Gate 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 South Gate, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in South Gate 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 45% of adults in South Gate have never been married, above 96% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; South Gate, CA sits in the top tenth nationally on this measure.
Why turnout in South Gate looks the way it does
Areas with limited routine healthcare access turn out at lower rates. South Gate is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 23%, about 13 points above the California average of 10%. Renters vote less often than owners, and about 55% of households in South Gate rent, about 30 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 33% of adults in South Gate report food insecurity, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lynwood, CA D+41
- Cudahy, CA D+34
- Bell, CA D+34
- Huntington Park, CA D+37
- Bell Gardens, CA D+36
- Florence-Graham, CA D+42
- Maywood, CA D+38
- Willowbrook, CA D+54
- Vernon, CA D+24
- East Rancho Dominguez, CA D+43
Cities with Similar Populations
- Gulfport, MS Even
- Williamsburg, VA D+16
- Missoula, MT D+25
- Holland, MI Even
- Greenwood, IN R+29
- Santa Monica, CA D+56
- Auburn, WA D+18
- Westminster, CA R+5
- Valdosta, GA D+10
- Fishers, IN D+2
All Local Stats
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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.