Berger, Dolton, IL Political Map | Democrat & Republican Areas in Berger

Berger is a Democratic stronghold. About 91% of voters here vote Democratic and 9% Republican.

 
Berger, Dolton, IL block-group political-lean map
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About 64% of adults in Berger typically vote, near the U.S. average of about 62%. Among adults in Berger, ~58% vote Democratic, ~6% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.

Berger, Dolton, IL block-group voter-turnout map
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How Berger compares

Among neighborhoods within 5 miles, Berger leans more Democratic than 7 of 9 neighbors.

Berger runs about 71 points more Democratic than Illinois as a whole.

Why Berger leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Berger, not a ranked or complete list of what matters most.

Areas with many never-married adults vote Democratic. About 52% of adults in Berger have never been married, modestly above similar-sized neighborhoods (around 47%).

Population density and Democratic lean

Places with high population density tend to lean Democratic; Berger, Dolton, IL sits in the top quarter nationally on this measure.

Why turnout in Berger looks the way it does

Turnout in Berger 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.

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.