29418 leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About 50% of adults in 29418 typically vote, below the U.S. average of about 62%. Among adults in 29418, ~33% vote Democratic, ~16% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How 29418 compares
Among zip codes within 15 miles, 29418 leans more Democratic than 17 of 22 neighbors.
29418 runs about 51 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while 29418 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 29418. The north side is the most Democratic-leaning (D+54) and the northwest side is the least Democratic-leaning (D+15), a spread of about 39 points.
Why 29418 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 29418, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 29418 is about 33%, about 39 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 39% of adults in 29418 have never been married, above 86% of zip codes. 29418 runs against the grain of South Carolina, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 29418, SC sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 29418 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 29418 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 50% of households in 29418 rent, about 25 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 23% of adults in 29418 report food insecurity, above 85% 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.