29306 leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About 56% of adults in 29306 typically vote, below the U.S. average of about 62%. Among adults in 29306, ~37% vote Democratic, ~18% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.
How 29306 compares
Among zip codes within 15 miles, 29306 is the most Democratic-leaning.
29306 runs about 53 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while 29306 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 29306. The east side runs the most Democratic (D+71) and the southeast side runs the most Republican (R+21), a spread of about 92 points.
Why 29306 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 29306, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 29306 is about 39%, about 33 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 42% of adults in 29306 have never been married, above 89% of zip codes. 29306 runs against the grain of South Carolina, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 29306, SC sits in the bottom quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 29306 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 29306 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 50%, about 9 points below the South Carolina average of 58%. Renters vote less often than owners, and about 52% of households in 29306 rent, about 27 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 33% of adults in 29306 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.