West Union, SC Political Map | Democrat & Republican Areas in West Union

West Union is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.

 
West Union, SC block-group political-lean map
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About 84% of adults in West Union typically vote, above the U.S. average of about 62%. Among adults in West Union, ~16% vote Democratic, ~68% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.

West Union, SC block-group voter-turnout map
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How West Union compares

Among cities within 25 miles, West Union leans more Republican than 29 of 51 neighbors.

West Union runs about 44 points more Republican than South Carolina as a whole.

Politics vary noticeably by neighborhood within West Union. The north side is the most Republican-leaning (R+64) and the west side is the least Republican-leaning (R+43), a spread of about 21 points.

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

West Union votes Republican even though it is densely developed (about 24%, about 13 points below the U.S. average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 75% of households in West Union are family households, above 75% of cities.

Cancer-screening access and voter turnout

Places with high colon-cancer-screening access tend to turn out at a higher rate; West Union, SC sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in West Union looks the way it does

Areas with strong routine healthcare access turn out at higher rates. West Union 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 66%, about 6 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.

Cities 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.