29118 leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 70% of adults in 29118 typically vote, above the U.S. average of about 62%. Among adults in 29118, ~48% vote Democratic, ~22% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 29118 compares
Among zip codes within 15 miles, 29118 leans more Democratic than 7 of 8 neighbors.
29118 runs about 55 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while 29118 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 29118. The southeast side is the most Democratic-leaning (D+64) and the southwest side is the least Democratic-leaning (D+11), a spread of about 53 points.
Why 29118 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 29118, not a ranked or complete list of what matters most.
29118 votes against the grain of South Carolina. South Carolina leans Republican overall, while 29118 runs about 55 points more Democratic. A high never-married share predicts Democratic voting, and about 42% of adults in 29118 have never been married, above 90% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 29118, SC sits above the national average on this measure.
Why turnout in 29118 looks the way it does
Turnout in 29118 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.