29003 leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 77% of adults in 29003 typically vote, above the U.S. average of about 62%. Among adults in 29003, ~45% vote Democratic, ~32% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 29003 compares
Among zip codes within 15 miles, 29003 leans more Democratic than 7 of 8 neighbors.
29003 runs about 34 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while 29003 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 29003. The west side runs the most Democratic (D+50) and the northeast side runs the most Republican (R+23), a spread of about 72 points.
Why 29003 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 29003, not a ranked or complete list of what matters most.
29003 votes against the grain of South Carolina. South Carolina leans Republican overall, while 29003 runs about 34 points more Democratic.
High-school completion and voter turnout
Places with low high-school-completion share tend to turn out at a lower rate; 29003, SC sits in the bottom tenth nationally on this measure.
Why turnout in 29003 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 29003 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.