Plain City leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.
About 96% of adults in Plain City typically vote, above the U.S. average of about 62%. Among adults in Plain City, ~36% vote Democratic, ~60% Republican, and ~4% don't vote. The map below shows estimated turnout by block group.
How Plain City compares
Among cities within 25 miles, Plain City leans more Republican than 29 of 85 neighbors.
Plain City runs about 13 points more Republican than Ohio as a whole.
Politics vary noticeably by neighborhood within Plain City. The east side runs the most Democratic (Even) and the west side runs the most Republican (R+44), a spread of about 44 points.
Why Plain City 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 Plain City, not a ranked or complete list of what matters most.
Plain City votes Republican even though it is densely developed (about 31%, about 6 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 83% of households in Plain City are family households, above 95% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Plain City, OH sits in the top tenth 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 Plain City looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Plain City 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 73%, about 13 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Plain City have completed high school, above 91% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Arnold, OH R+34
- New California, OH R+14
- Jerome, OH R+46
- Amlin, OH Even
- Dublin, OH D+15
- Unionville Center, OH R+47
- Shawnee Hills, OH R+5
- Watkins, OH R+45
- Mudsock, OH R+14
- Hilliard, OH D+11
Cities with Similar Populations
- Marysville, CA R+12
- Swansea, MA R+8
- Hopkinton, MA D+26
- North Palm Beach, FL R+24
- Trabuco Canyon, CA R+6
- Abington, PA D+36
- Charlotte, MI R+28
- Farmingville, NY R+24
- Red Wing, MN R+8
- South Ogden, UT R+13
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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.