Adair leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 75% of adults in Adair typically vote, above the U.S. average of about 62%. Among adults in Adair, ~19% vote Democratic, ~56% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Adair compares
Among cities within 25 miles, Adair leans more Republican than 30 of 55 neighbors.
Adair runs about 60 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Adair is one of the few Republican-leaning pockets.
Why Adair 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 Adair, not a ranked or complete list of what matters most.
Adair votes against the grain of Illinois. Illinois leans Democratic overall, while Adair runs about 60 points more Republican.
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as Adair, IL does.
Why turnout in Adair looks the way it does
Turnout in Adair 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
- Table Grove, IL R+51
- New Philadelphia, IL R+50
- Bardolph, IL R+48
- Industry, IL R+46
- Vermont, IL R+55
- Marietta, IL R+50
- Macomb, IL D+8
- Bushnell, IL R+38
- Ipava, IL R+50
- Seville, IL R+49
Cities with Similar Populations
- Cowlington, OK R+73
- East Gillespie, IL R+42
- Philrich, TX R+76
- Temperance, GA R+72
- Legareville, SC D+3
- Yuma, KY R+73
- Stotonic Village, AZ D+55
- Bergland, MI R+27
- Meldrum, KY R+76
- Archibald, LA R+75
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.