Miami Heights leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 97% of adults in Miami Heights typically vote, above the U.S. average of about 62%. Among adults in Miami Heights, ~24% vote Democratic, ~73% Republican, and ~3% don't vote. The map below shows estimated turnout by block group.
How Miami Heights compares
Among cities within 25 miles, Miami Heights leans more Republican than 85 of 130 neighbors.
Miami Heights runs about 39 points more Republican than Ohio as a whole.
Why Miami Heights 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 Miami Heights, not a ranked or complete list of what matters most.
Miami Heights votes Republican even though it is densely developed (about 52%, well above the Ohio average of 34%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 77% of households in Miami Heights are family households, above 83% of cities.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Miami Heights, OH sits in the top tenth nationally on this measure.
Why turnout in Miami Heights looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Miami Heights 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 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 98% of households in Miami Heights own their home, compared to around 73% in nearby cities. High high-school completion lines up with higher turnout, and about 97% of adults in Miami Heights have completed high school, above 89% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Cleves, OH R+48
- North Bend, OH R+51
- Addyston, OH R+45
- Miamitown, OH R+51
- Hooven, OH R+61
- Taylor Creek, OH R+35
- Hebron, KY R+35
- Cheviot, OH D+3
- White Oak, OH R+11
- Harrison, OH R+51
Cities with Similar Populations
- French Island, WI R+2
- Big Sandy, TX R+69
- Comfort, TX R+43
- Marietta, SC R+65
- Washington, GA Even
- Hauula, HI D+11
- Barrington Hills, IL Even
- Robesonia, PA R+35
- Dilworth, MN R+7
- Geneva, FL R+45
All Local Stats
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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.