Clayton County is a Democratic stronghold. About 84% of voters here vote Democratic and 16% Republican.
About 62% of adults in Clayton County typically vote, near the U.S. average of about 62%. Among adults in Clayton County, ~52% vote Democratic, ~10% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How Clayton County compares
Among counties within 50 miles, Clayton County is the most Democratic-leaning.
Clayton County runs about 70 points more Democratic than Georgia as a whole. Georgia is roughly evenly split, and Clayton County sits clearly on the Democratic side.
Politics vary noticeably by city within Clayton County. The northwest side is the most Democratic-leaning (D+79) and the north side is the least Democratic-leaning (D+54), a spread of about 25 points.
Why Clayton County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Clayton County, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 82% of residents in Clayton County live in densely developed areas, about 46 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 47% of adults in Clayton County have never been married, above 98% of counties. Clayton County runs against the grain of Georgia, a Democratic-leaning outlier in a roughly evenly split state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Clayton County, GA sits in the top tenth nationally on this measure.
Why turnout in Clayton County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Clayton County 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 49%, about 7 points below the Georgia average of 56%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Henry County, GA D+26
- Fayette County, GA R+4
- DeKalb County, GA D+63
- Fulton County, GA D+46
- Rockdale County, GA D+42
- Spalding County, GA R+8
- Coweta County, GA R+27
- Douglas County, GA D+28
- Newton County, GA D+16
- Butts County, GA R+38
Counties with Similar Populations
- Greene County, MO R+18
- Ottawa County, MI R+16
- Dutchess County, NY D+8
- Cleveland County, OK R+14
- Chatham County, GA D+26
- Thurston County, WA D+19
- Lexington County, SC R+30
- St. Louis City, MO D+65
- Gloucester County, NJ R+2
- Leon County, FL D+26
Sources and methodology
Precinct-level voting records used to fit the model come from Georgia Elections Division, 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.