29590 leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 49% of adults in 29590 typically vote, below the U.S. average of about 62%. Among adults in 29590, ~35% vote Democratic, ~14% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How 29590 compares
Among zip codes within 15 miles, 29590 leans more Democratic than 3 of 5 neighbors.
29590 runs about 61 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while 29590 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 29590. The southwest side is the most Democratic-leaning (D+72) and the northwest side is the least Democratic-leaning (D+23), a spread of about 49 points.
Why 29590 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 29590, not a ranked or complete list of what matters most.
29590 votes against the grain of South Carolina. South Carolina leans Republican overall, while 29590 runs about 61 points more Democratic. A high never-married share predicts Democratic voting, and about 50% of adults in 29590 have never been married, above 95% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 29590, SC sits in the top tenth nationally on this measure.
Why turnout in 29590 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 29590 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 47%, about 11 points below the South Carolina average of 58%. High food insecurity lines up with lower turnout, and about 36% of adults in 29590 report food insecurity, above 97% of zip codes. High-crime urban areas turn out at lower rates, and 29590 sits in the top 15% on a violent-crime measure. 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.