Cornland, IL Political Map | Democrat & Republican Areas in Cornland

Cornland is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.

 
Cornland, IL block-group political-lean map
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About 70% of adults in Cornland typically vote, above the U.S. average of about 62%. Among adults in Cornland, ~16% vote Democratic, ~54% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.

Cornland, IL block-group voter-turnout map
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How Cornland compares

Among cities within 25 miles, Cornland leans more Republican than 55 of 70 neighbors.

Cornland runs about 66 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Cornland is one of the few Republican-leaning pockets.

Why Cornland 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 Cornland, not a ranked or complete list of what matters most.

Cornland votes against the grain of Illinois. Illinois leans Democratic overall, while Cornland runs about 66 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 Cornland, IL does.

Why turnout in Cornland looks the way it does

Areas with high high-school completion turn out at higher rates. About 97% of adults in Cornland have completed high school, about 7 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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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.