Rosemount leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 82% of adults in Rosemount typically vote, above the U.S. average of about 62%. Among adults in Rosemount, ~25% vote Democratic, ~57% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Rosemount compares
Among cities within 25 miles, Rosemount leans more Republican than 4 of 88 neighbors.
Rosemount runs about 29 points more Republican than Ohio as a whole.
Why Rosemount 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 Rosemount, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in Rosemount drive to work alone, about 13 points above the U.S. average of 74%.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Rosemount, OH sits in the top quarter nationally on this measure.
Why turnout in Rosemount looks the way it does
Turnout in Rosemount sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Portsmouth, OH R+30
- New Boston, OH R+36
- Rushtown, OH R+54
- West Portsmouth, OH R+54
- Slocums, OH R+61
- South Shore, KY R+61
- South Portsmouth, KY R+62
- Maloneton, KY R+65
- McDermott, OH R+56
Cities with Similar Populations
- Coffeen, IL R+52
- Aroda, VA R+31
- Wataga, IL R+30
- Bentley, MI R+50
- Mount Selman, TX R+74
- Parkers Chapel, AR R+64
- Ogden, OH R+55
- Shaw Mills, ME R+13
- Shelby, IA R+54
- Tribune, KS R+66
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.