29821 leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 78% of adults in 29821 typically vote, above the U.S. average of about 62%. Among adults in 29821, ~20% vote Democratic, ~58% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How 29821 compares
Among zip codes within 15 miles, 29821 is the most Republican-leaning.
29821 runs about 32 points more Republican than South Carolina as a whole.
Politics vary noticeably by block within 29821. The northeast side is the most Republican-leaning (R+66) and the south side is the least Republican-leaning (R+37), a spread of about 30 points.
Why 29821 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 29821, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in 29821 live in densely developed areas, about 19 points below the South Carolina average of 24%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 29821, SC sits in the bottom tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 29821 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 29821 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 60%, below 58% of zip codes. Homeowners vote more often than renters, and about 94% of households in 29821 own their home, compared to around 74% in nearby 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.