29904 leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 42% of adults in 29904 typically vote, below the U.S. average of about 62%. Among adults in 29904, ~17% vote Democratic, ~26% Republican, and ~57% don't vote. The map below shows estimated turnout by block group.
How 29904 compares
Among zip codes within 15 miles, 29904 is the most Republican-leaning.
29904 runs about 5 points more Republican than South Carolina as a whole.
Why 29904 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 29904, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 86% of households in 29904 are family households, about 19 points above the U.S. average of 67%.
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 29904, SC does.
Why turnout in 29904 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 29904 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The uninsured rate here is about 21%, about 8 points above the South Carolina average of 13%. Renters vote less often than owners, and about 64% of households in 29904 rent, compared to around 36% in nearby zip codes. Low high-school completion lines up with lower turnout, and more than 99% of adults in 29904 have completed high school, in the top fraction 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.