Lewis, SC Political Map | Democrat & Republican Areas in Lewis

Lewis leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.

 
Lewis, SC block-group political-lean map
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About 65% of adults in Lewis typically vote, near the U.S. average of about 62%. Among adults in Lewis, ~26% vote Democratic, ~39% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.

Lewis, SC block-group voter-turnout map
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How Lewis compares

Among cities within 25 miles, Lewis leans more Republican than 19 of 58 neighbors.

Politically, Lewis sits close to the rest of South Carolina.

Politics vary noticeably by neighborhood within Lewis. The southeast side is the most Republican-leaning (R+29) and the north side is the least Republican-leaning (R+18), a spread of about 11 points.

Why Lewis 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 Lewis, not a ranked or complete list of what matters most.

Areas with low college attainment vote Republican. About 14% of adults in Lewis hold a bachelor's degree, about 10 points below the South Carolina average of 23%. Car-dependent areas vote Republican, and about 85% of residents in Lewis drive to work alone, above 82% of cities. A high family-household share predicts Republican voting, and about 83% of households in Lewis are family households, above 94% of cities.

Park access and Republican lean

Places with low park coverage tend to lean Republican; Lewis, SC sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.

Why turnout in Lewis looks the way it does

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

Nearby Cities

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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.