29666 leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 80% of adults in 29666 typically vote, above the U.S. average of about 62%. Among adults in 29666, ~20% vote Democratic, ~60% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How 29666 compares
Among zip codes within 15 miles, 29666 leans more Republican than 8 of 9 neighbors.
29666 runs about 31 points more Republican than South Carolina as a whole.
Politics vary noticeably by block within 29666. The south side is the most split-leaning (R+68) and the northwest side is the least split-leaning (Even), a spread of about 68 points.
Why 29666 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 29666, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in 29666 drive to work alone, about 14 points above the U.S. average of 74%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 29666, SC sits in the bottom quarter 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 29666 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 29666 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 64%, above 62% 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.