29340 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 60% of adults in 29340 typically vote, near the U.S. average of about 62%. Among adults in 29340, ~19% vote Democratic, ~41% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How 29340 compares
Among zip codes within 15 miles, 29340 leans more Republican than 3 of 15 neighbors.
29340 runs about 18 points more Republican than South Carolina as a whole.
Politics vary noticeably by block within 29340. The northwest side runs the most Democratic (D+30) and the southeast side runs the most Republican (R+75), a spread of about 105 points.
Why 29340 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 29340, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 84% of residents in 29340 drive to work alone, about 10 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and 29340 sits in the bottom quarter (about 13%, below 88% of zip codes).
Food insecurity and voter turnout
Places with high food insecurity tend to turn out at a lower rate; 29340, SC sits in the top tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in 29340 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 29340 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. High food insecurity lines up with lower turnout, and about 28% of adults in 29340 report food insecurity, above 92% of zip codes. Low high-school completion lines up with lower turnout, and about 83% of adults in 29340 have completed high school, below 86% 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.