Oconee County, SC Political Map | Democrat & Republican Areas in Oconee County

Oconee County is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.

 
Oconee County, SC block-group political-lean map
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About 76% of adults in Oconee County typically vote, above the U.S. average of about 62%. Among adults in Oconee County, ~18% vote Democratic, ~58% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.

Oconee County, SC block-group voter-turnout map
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How Oconee County compares

Among counties within 50 miles, Oconee County leans more Republican than 11 of 17 neighbors.

Oconee County runs about 36 points more Republican than South Carolina as a whole.

Politics vary noticeably by city within Oconee County. The southwest side is the most Republican-leaning (R+71) and the east side is the least Republican-leaning (R+29), a spread of about 42 points.

Why Oconee County leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Oconee County. The lean here lands roughly where demographic data alone would predict.

Cancer-screening access and voter turnout

Places with high colon-cancer-screening access tend to turn out at a higher rate; Oconee County, 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 Oconee County looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Oconee County 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 62%, above 61% of counties. 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.