Forest Glen, Chicago, IL Political Map | Democrat & Republican Areas in Forest Glen

Forest Glen leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.

 
Forest Glen, Chicago, IL block-group political-lean map
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About 81% of adults in Forest Glen typically vote, above the U.S. average of about 62%. Among adults in Forest Glen, ~50% vote Democratic, ~31% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.

Forest Glen, Chicago, IL block-group voter-turnout map
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How Forest Glen compares

Among neighborhoods within 5 miles, Forest Glen leans more Democratic than 10 of 35 neighbors.

Forest Glen runs about 14 points more Democratic than Illinois as a whole.

Politics vary noticeably by block within Forest Glen. The southeast side is the most Democratic-leaning (D+29) and the north side is the least Democratic-leaning (D+17), a spread of about 12 points.

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

Areas with high college attainment vote Democratic. About 62% of adults in Forest Glen hold a bachelor's degree, about 34 points above the U.S. average of 28%.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Forest Glen, Chicago, IL sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Forest Glen looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Forest Glen 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 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 90% of households in Forest Glen own their home, compared to around 66% in nearby neighborhoods. 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.