Humboldt Park, Chicago, IL Political Map | Democrat & Republican Areas in Humboldt Park

By the BestNeighborhood data science team. Last updated May 2026.

Humboldt Park is a Democratic stronghold. About 80% of voters here vote Democratic and 20% Republican.

 

About 41% of adults in Humboldt Park typically vote, below the U.S. average of about 62%. Among adults in Humboldt Park, ~32% vote Democratic, ~8% Republican, and ~60% don't vote. The map below shows estimated turnout by block group.

How Humboldt Park compares

Among neighborhoods within 5 miles, Humboldt Park leans more Democratic than 24 of 52 neighbors.

Humboldt Park runs about 50 points more Democratic than Illinois as a whole.

Politics vary noticeably by block within Humboldt Park. The south side is the most Democratic-leaning (D+75) and the northwest side is the least Democratic-leaning (D+45), a spread of about 31 points.

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

Dense areas vote Democratic. More than 99% of residents in Humboldt Park live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 55% of adults in Humboldt Park have never been married, above 88% of neighborhoods.

Preventive-care access and voter turnout

Places with limited routine preventive-care access tend to turn out at a lower rate; Humboldt Park, Chicago, IL sits in the bottom 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 Humboldt Park looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Humboldt Park is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 48%, about 15 points below the Illinois average of 63%. High food insecurity lines up with lower turnout, and about 41% of adults in Humboldt Park report food insecurity, above 94% of neighborhoods. High-crime urban areas turn out at lower rates, and Humboldt Park sits in the top 15% on a violent-crime measure. 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.