60641 leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.
About 50% of adults in 60641 typically vote, below the U.S. average of about 62%. Among adults in 60641, ~35% vote Democratic, ~15% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How 60641 compares
Among zip codes within 15 miles, 60641 leans more Democratic than 59 of 115 neighbors.
60641 runs about 29 points more Democratic than Illinois as a whole.
Politics vary noticeably by block within 60641. The northeast side is the most Democratic-leaning (D+54) and the west side is the least Democratic-leaning (D+28), a spread of about 26 points.
Why 60641 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 60641, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 60641 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 60641 sits in the top quarter (about 38%, above 79% of zip codes). A high never-married share predicts Democratic voting, and about 40% of adults in 60641 have never been married, above 88% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 60641, IL sits in the top tenth nationally on this measure.
Why turnout in 60641 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 60641 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 47% of households in 60641 rent, about 22 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 22% of adults in 60641 report food insecurity, above 83% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes 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.