Roselle is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 79% of adults in Roselle typically vote, above the U.S. average of about 62%. Among adults in Roselle, ~14% vote Democratic, ~64% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Roselle compares
Among cities within 25 miles, Roselle leans more Republican than 31 of 65 neighbors.
Roselle runs about 45 points more Republican than Missouri as a whole.
Why Roselle 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 Roselle, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 12% of adults in Roselle hold a bachelor's degree, about 10 points below the Missouri average of 22%. A high family-household share predicts Republican voting, and about 78% of households in Roselle are family households, above 85% of cities.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; Roselle, MO sits in the top tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Roselle looks the way it does
Turnout in Roselle sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ironton, MO R+56
- Pilot Knob, MO R+57
- Arcadia, MO R+53
- Iron Mountain Lake, MO R+71
- Killarney Shores, MO R+62
- Snow Hollow Lake, MO R+62
- Iron Mountain, MO R+68
- Middle Brook, MO R+64
- Doe Run, MO R+62
- French Mills, MO R+60
Cities with Similar Populations
- Hooper, WA R+69
- Turck, KS R+54
- Turnwood, NY Even
- Scant City, AL R+75
- Elevon, VA Even
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.