Clayton leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 89% of adults in Clayton typically vote, above the U.S. average of about 62%. Among adults in Clayton, ~48% vote Democratic, ~41% Republican, and ~11% don't vote. The map below shows estimated turnout by block group.
How Clayton compares
Among cities within 25 miles, Clayton leans more Democratic than 94 of 97 neighbors.
Clayton runs about 20 points more Democratic than Ohio as a whole. Ohio leans Republican overall, while Clayton is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within Clayton. The southeast side runs the most Democratic (D+18) and the northwest side runs the most Republican (R+21), a spread of about 39 points.
Why Clayton 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 Clayton, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 73% of residents in Clayton live in densely developed areas, about 37 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Clayton sits in the top quarter (about 35%, above 83% of cities). Clayton runs against the grain of Ohio, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Clayton, OH sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Clayton looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Clayton 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 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Clayton have completed high school, above 86% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Englewood, OH R+7
- Trotwood, OH D+64
- Union, OH R+30
- Vandalia, OH R+27
- Frederick, OH R+60
- Brookville, OH R+51
- Phillipsburg, OH R+55
- West Milton, OH R+49
- Huber Heights, OH R+9
- New Lebanon, OH R+55
Cities with Similar Populations
- Ridgeland, SC Even
- Warrenton, MO R+50
- Berkeley Heights, NJ D+11
- Parker, SC D+14
- Two Rivers, WI R+18
- Bessemer City, NC R+44
- Upper Montclair, NJ D+70
- Whitefish, MT R+6
- Magnolia, DE D+2
- Claremont, NH R+19
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Sources and methodology
Precinct-level voting records used to fit the model come from Ohio Secretary of State, Elections, 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.