Bon Air Terrace, SC Political Map | Democrat & Republican Areas in Bon Air Terrace

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

Bon Air Terrace is a true toss-up. About 51% of voters here vote Democratic and 49% Republican.

 

About 67% of adults in Bon Air Terrace typically vote, near the U.S. average of about 62%. Among adults in Bon Air Terrace, ~34% vote Democratic, ~33% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.

How Bon Air Terrace compares

Among cities within 25 miles, Bon Air Terrace sits roughly in the middle of the political spectrum, with 15 neighbors leaning further in the place's direction and 28 leaning the other way.

Bon Air Terrace runs about 20 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while Bon Air Terrace sits closer to the political middle.

Why Bon Air Terrace 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 Bon Air Terrace, not a ranked or complete list of what matters most.

Bon Air Terrace votes against the grain of South Carolina. South Carolina leans Republican overall, while Bon Air Terrace runs about 20 points more Democratic.

Cancer-screening access and voter turnout

Places with high colon-cancer-screening access tend to turn out at a higher rate; Bon Air Terrace, SC sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in Bon Air Terrace looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Bon Air Terrace 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 62%, compared to around 54% in nearby 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 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.