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

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

Parker leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.

 

About 43% of adults in Parker typically vote, below the U.S. average of about 62%. Among adults in Parker, ~25% vote Democratic, ~18% Republican, and ~57% don't vote. The map below shows estimated turnout by block group.

How Parker compares

Among cities within 25 miles, Parker leans more Democratic than 58 of 60 neighbors.

Parker runs about 32 points more Democratic than South Carolina as a whole. South Carolina leans Republican overall, while Parker is one of the few Democratic-leaning pockets.

Politics vary noticeably by neighborhood within Parker. The east side is the most Democratic-leaning (D+37) and the southwest side is the least Democratic-leaning (D+4), a spread of about 33 points.

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

Dense areas vote Democratic. About 88% of residents in Parker live in densely developed areas, about 51 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 48% of adults in Parker have never been married, above 97% of cities. Parker runs against the grain of South Carolina, a Democratic-leaning pocket in a Republican-leaning state.

Population density and Democratic lean

Places with high population density tend to lean Democratic; Parker, SC sits in the top tenth nationally on this measure.

Why turnout in Parker looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Parker is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 45%, about 14 points below the South Carolina average of 58%. Renters vote less often than owners, and about 54% of households in Parker rent, compared to around 33% in nearby cities. High food insecurity lines up with lower turnout, and about 38% of adults in Parker report food insecurity, above 98% of cities. Learn more about the findings and methodology on the political spectrum map.

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.