29556 leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.
About 72% of adults in 29556 typically vote, above the U.S. average of about 62%. Among adults in 29556, ~50% vote Democratic, ~22% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How 29556 compares
Among zip codes within 15 miles, 29556 leans more Democratic than 3 of 7 neighbors.
29556 runs about 58 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while 29556 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 29556. The south side is the most Democratic-leaning (D+68) and the northwest side is the least Democratic-leaning (D+5), a spread of about 63 points.
Why 29556 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 29556, not a ranked or complete list of what matters most.
29556 votes against the grain of South Carolina. South Carolina leans Republican overall, while 29556 runs about 58 points more Democratic. A high never-married share predicts Democratic voting, and about 41% of adults in 29556 have never been married, above 88% of zip codes.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 29556, SC sits above the national average on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 29556 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 29556 sits in the bottom quarter on routine-care measures. 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.