Blair, SC Political Map | Democrat & Republican Areas in Blair

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

Blair leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.

 

About 73% of adults in Blair typically vote, above the U.S. average of about 62%. Among adults in Blair, ~49% vote Democratic, ~24% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.

How Blair compares

Among cities within 25 miles, Blair leans more Democratic than 40 of 46 neighbors.

Blair runs about 52 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while Blair is one of the few Democratic-leaning pockets.

Politics vary noticeably by neighborhood within Blair. The north side is the most Democratic-leaning (D+40) and the east side is the least Democratic-leaning (D+29), a spread of about 11 points.

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

Blair votes against the grain of South Carolina. South Carolina leans Republican overall, while Blair runs about 52 points more Democratic. A high never-married share predicts Democratic voting, and about 38% of adults in Blair have never been married, above 91% of cities.

Park access and Democratic lean

Places with heavy park coverage tend to lean Democratic; Blair, SC sits in the top quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.

Why turnout in Blair looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Blair is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 56%, below 70% of cities. 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 South Carolina State Election Commission, 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.