McClusky leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 76% of adults in McClusky typically vote, above the U.S. average of about 62%. Among adults in McClusky, ~19% vote Democratic, ~57% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.
How McClusky compares
Among cities within 25 miles, McClusky leans more Republican than 71 of 109 neighbors.
McClusky runs about 60 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while McClusky is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within McClusky. The northwest side is the most Republican-leaning (R+56) and the south side is the least Republican-leaning (R+43), a spread of about 13 points.
Why McClusky 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 McClusky, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In McClusky, more than 99% of residents are non-Hispanic white, about 27 points above the U.S. average of 72%; about 16% of adults hold a bachelor's degree, about 10 points below the Illinois average of 27%. A high family-household share predicts Republican voting, and about 84% of households in McClusky are family households, above 95% of cities. McClusky runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; McClusky, IL sits in the top tenth nationally on this measure.
Why turnout in McClusky looks the way it does
Areas with strong routine healthcare access turn out at higher rates. McClusky 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 69%, about 9 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in McClusky own their home, about 16 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in McClusky have completed high school, above 95% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Jerseyville, IL R+43
- Dow, IL R+36
- Otterville, IL R+51
- Grafton, IL R+39
- Elsah, IL R+32
- Portage Des Sioux, MO R+56
- Kane, IL R+63
- Fieldon, IL R+58
- Old Kane, IL R+64
- Brighton, IL R+47
Cities with Similar Populations
- Roxbury, PA R+71
- Wilno, MN R+48
- Canada Creek Ranch, MI R+43
- Murdock, KS R+66
- Rico, CO R+39
- Gibson Island, MD R+30
- Moscow, MS Even
- Biehle, MO R+72
- Bellwood, AL R+66
- Schlater, MS R+14
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.