East San Diego, San Diego, CA Political Map | Democrat & Republican Areas in East San Diego

East San Diego leans heavily Democratic by roughly 46 points: about 73% of voters vote Democratic and 27% Republican.

 
East San Diego, San Diego, CA block-group political-lean map
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About 39% of adults in East San Diego typically vote, below the U.S. average of about 62%. Among adults in East San Diego, ~29% vote Democratic, ~11% Republican, and ~60% don't vote. The map below shows estimated turnout by block group.

East San Diego, San Diego, CA block-group voter-turnout map
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How East San Diego compares

Among neighborhoods within 5 miles, East San Diego leans more Democratic than 32 of 45 neighbors.

East San Diego runs about 25 points more Democratic than California as a whole.

Politics vary noticeably by block within East San Diego. The north side is the most Democratic-leaning (D+65) and the east side is the least Democratic-leaning (D+30), a spread of about 35 points.

Why East San Diego leans the way it does

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

Dense areas vote Democratic. More than 99% of residents in East San Diego 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 51% of adults in East San Diego have never been married, above 82% of neighborhoods.

Population density and Democratic lean

Places with high population density tend to lean Democratic; East San Diego, San Diego, CA sits in the top tenth nationally on this measure.

Why turnout in East San Diego looks the way it does

Renters vote less often than owners. About 78% of households in East San Diego rent, about 53 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 10% of homes in East San Diego have more than one occupant per room, above 90% of neighborhoods. High-crime urban areas turn out at lower rates, and East San Diego sits in the top 15% on a violent-crime measure. 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.