Round Knob is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 85% of adults in Round Knob typically vote, above the U.S. average of about 62%. Among adults in Round Knob, ~15% vote Democratic, ~69% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How Round Knob compares
Among cities within 25 miles, Round Knob leans more Republican than 68 of 83 neighbors.
Round Knob runs about 75 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Round Knob is one of the few Republican-leaning pockets.
Why Round Knob 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 Round Knob, not a ranked or complete list of what matters most.
Round Knob votes against the grain of Illinois. Illinois leans Democratic overall, while Round Knob runs about 75 points more Republican. A high family-household share predicts Republican voting, and about 77% of households in Round Knob are family households, above 82% of cities.
Renting and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Round Knob, IL sits in the bottom tenth nationally on this measure.
Why turnout in Round Knob looks the way it does
Homeowners vote more often than renters. About 96% of households in Round Knob own their home, about 17 points above the Illinois average of 80%. High high-school completion lines up with higher turnout, and about 98% of adults in Round Knob have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- New Columbia, IL R+68
- Metropolis, IL R+40
- Temple Hill, IL R+63
- Mermet, IL R+64
- Joppa, IL R+59
- Reevesville, IL R+60
- Grantsburg, IL R+47
- Hillerman, IL R+59
- Grahamville, KY R+58
Cities with Similar Populations
- Mier, IN R+58
- Bruemmerville, WI R+37
- Cimarron, CO R+6
- Diggs, VA R+46
- Flower, WV R+66
- Hickory Hill, MO R+70
- Virginia City, MT R+50
- High Point, MO R+64
- Buena Vista, IN R+65
- Lakeview Heights, MO R+63
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Illinois State Board of 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.