29204 is a Democratic stronghold. About 76% of voters here vote Democratic and 24% Republican.
About 59% of adults in 29204 typically vote, near the U.S. average of about 62%. Among adults in 29204, ~45% vote Democratic, ~14% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How 29204 compares
Among zip codes within 15 miles, 29204 leans more Democratic than 21 of 22 neighbors.
29204 runs about 70 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while 29204 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 29204. The northwest side is the most Democratic-leaning (D+88) and the southeast side is the least Democratic-leaning (D+7), a spread of about 81 points.
Why 29204 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 29204, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in 29204 live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 49% of adults in 29204 have never been married, above 94% of zip codes. 29204 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; 29204, 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 29204 looks the way it does
Renters vote less often than owners. About 42% of households in 29204 rent, about 17 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 24% of adults in 29204 report food insecurity, above 87% 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.