29170 leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 74% of adults in 29170 typically vote, above the U.S. average of about 62%. Among adults in 29170, ~25% vote Democratic, ~49% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 29170 compares
Among zip codes within 15 miles, 29170 leans more Republican than 14 of 19 neighbors.
29170 runs about 14 points more Republican than South Carolina as a whole.
Politics vary noticeably by block within 29170. The south side is the most Republican-leaning (R+40) and the north side is the least Republican-leaning (R+24), a spread of about 16 points.
Why 29170 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 29170, not a ranked or complete list of what matters most.
29170 votes Republican even though it is densely developed (about 70%, far above the South Carolina average of 24%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 29170, SC sits above the national average on this measure.
Why turnout in 29170 looks the way it does
Turnout in 29170 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.