Rockville is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About 72% of adults in Rockville typically vote, above the U.S. average of about 62%. Among adults in Rockville, ~11% vote Democratic, ~61% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Rockville compares
Among cities within 25 miles, Rockville leans more Republican than 37 of 45 neighbors.
Rockville runs about 52 points more Republican than Missouri as a whole.
Why Rockville leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Rockville. The lean here lands roughly where demographic data alone would predict.
Never-married share, developed land, and voter turnout
Places that combine a low never-married share and a rural land-use pattern tend to turn out at a higher rate, as Rockville, MO does.
Why turnout in Rockville looks the way it does
Turnout in Rockville sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Prairie City, MO R+71
- Schell City, MO R+73
- Taberville, MO R+69
- Pleasant Gap, MO R+71
- Harwood, MO R+74
- Hudson, MO R+67
- Appleton City, MO R+57
- Johnson City, MO R+69
- Tiffin, MO R+68
- Peru, MO R+70
Cities with Similar Populations
- Rhine, WI R+30
- Valeria, IA R+42
- East Duke, OK R+77
- Viking, MN R+55
- Rockville, NY R+45
- Camp, AR R+65
- Leck, VA R+71
- Eden, SD R+23
- Shanksville, PA R+63
- Bay View Gardens, IL R+38
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Missouri 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.