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

Nortonville is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.

 
Nortonville, IL block-group political-lean map
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About 71% of adults in Nortonville typically vote, above the U.S. average of about 62%. Among adults in Nortonville, ~16% vote Democratic, ~55% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.

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

Among cities within 25 miles, Nortonville leans more Republican than 34 of 60 neighbors.

Nortonville runs about 68 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Nortonville is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Nortonville. The south side is the most Republican-leaning (R+69) and the north side is the least Republican-leaning (R+53), a spread of about 15 points.

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

Nortonville votes against the grain of Illinois. Illinois leans Democratic overall, while Nortonville runs about 68 points more Republican. A high family-household share predicts Republican voting, and about 78% of households in Nortonville are family households, above 85% of cities.

Walkability and Republican lean

Places with a low walkability score tend to lean Republican; Nortonville, IL sits in the bottom tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Nortonville looks the way it does

Turnout in Nortonville sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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.