29115 is a Democratic stronghold. About 76% of voters here vote Democratic and 24% Republican.
About 60% of adults in 29115 typically vote, near the U.S. average of about 62%. Among adults in 29115, ~46% vote Democratic, ~14% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How 29115 compares
Among zip codes within 15 miles, 29115 is the most Democratic-leaning.
29115 runs about 69 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while 29115 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 29115. The south side is the most Democratic-leaning (D+76) and the northwest side is the least Democratic-leaning (D+14), a spread of about 62 points.
Why 29115 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 29115, not a ranked or complete list of what matters most.
29115 votes against the grain of South Carolina. South Carolina leans Republican overall, while 29115 runs about 69 points more Democratic. A high never-married share predicts Democratic voting, and about 54% of adults in 29115 have never been married, above 96% of zip codes.
Never-married share, developed land, and voter turnout
Places that combine a never-married-heavy adult population and a heavily developed built environment tend to turn out at a lower rate, as 29115, SC does.
Why turnout in 29115 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 29115 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 51% of households in 29115 rent, compared to around 24% in nearby zip codes. High food insecurity lines up with lower turnout, and about 35% of adults in 29115 report food insecurity, above 96% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.