Spring Hill, SC Political Map | Democrat & Republican Areas in Spring Hill

By the BestNeighborhood data science team. Last updated May 2026.

Spring Hill leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.

 

About 80% of adults in Spring Hill typically vote, above the U.S. average of about 62%. Among adults in Spring Hill, ~49% vote Democratic, ~31% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.

How Spring Hill compares

Among cities within 25 miles, Spring Hill leans more Democratic than 31 of 42 neighbors.

Spring Hill runs about 39 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while Spring Hill is one of the few Democratic-leaning pockets.

Why Spring Hill leans the way it does

This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Spring Hill, not a ranked or complete list of what matters most.

Areas with many never-married adults vote Democratic. About 50% of adults in Spring Hill have never been married, well above similar-sized cities (around 26%). Spring Hill runs against the grain of South Carolina, a Democratic-leaning pocket in a Republican-leaning state.

Preventive-care access and voter turnout

Places with limited routine preventive-care access tend to turn out at a lower rate; Spring Hill, SC sits in the bottom tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Spring Hill looks the way it does

Homeowners vote more often than renters. About 95% of households in Spring Hill own their home, about 18 points above the South Carolina average of 77%. Limited routine healthcare access lines up with lower turnout, and Spring Hill sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.

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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.