Southwest Dallas, Dallas, TX Political Map | Democrat & Republican Areas in Southwest Dallas

Southwest Dallas leans heavily Democratic by roughly 46 points: about 73% of voters vote Democratic and 27% Republican.

 
Southwest Dallas, Dallas, TX block-group political-lean map
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About 41% of adults in Southwest Dallas typically vote, below the U.S. average of about 62%. Among adults in Southwest Dallas, ~30% vote Democratic, ~11% Republican, and ~59% don't vote. The map below shows estimated turnout by block group.

Southwest Dallas, Dallas, TX block-group voter-turnout map
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How Southwest Dallas compares

Among neighborhoods within 5 miles, Southwest Dallas leans more Democratic than 2 of 4 neighbors.

Southwest Dallas runs about 59 points more Democratic than Texas as a whole. Texas leans Republican overall, while Southwest Dallas is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within Southwest Dallas. The southeast side is the most Democratic-leaning (D+82) and the northwest side is the least Democratic-leaning (D+27), a spread of about 55 points.

Why Southwest Dallas 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 Southwest Dallas, not a ranked or complete list of what matters most.

Southwest Dallas votes against the grain of Texas. Texas leans Republican overall, while Southwest Dallas runs about 59 points more Democratic.

Population density and Democratic lean

Places with high population density tend to lean Democratic; Southwest Dallas, Dallas, TX sits above the national average on this measure.

Why turnout in Southwest Dallas looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Southwest Dallas is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 47%, about 7 points below the Texas average of 54%. Low high-school completion lines up with lower turnout, and about 76% of adults in Southwest Dallas have completed high school, below 90% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.

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Sources and methodology

Precinct-level voting records used to fit the model come from Texas Secretary of State, Elections Division, 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.