60637 is a Democratic stronghold. About 91% of voters here vote Democratic and 9% Republican.
About 48% of adults in 60637 typically vote, below the U.S. average of about 62%. Among adults in 60637, ~44% vote Democratic, ~4% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.
How 60637 compares
Among zip codes within 15 miles, 60637 leans more Democratic than 90 of 96 neighbors.
60637 runs about 71 points more Democratic than Illinois as a whole.
Politics vary noticeably by block within 60637. The northeast side is the most Democratic-leaning (D+86) and the north side is the least Democratic-leaning (D+72), a spread of about 15 points.
Why 60637 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 60637, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 97% of residents in 60637 live in densely developed areas, about 61 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 60637 sits in the top quarter (about 39%, above 80% of zip codes). A high never-married share predicts Democratic voting, and about 64% of adults in 60637 have never been married, in the top fraction of zip codes.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 60637, IL sits in the top 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 60637 looks the way it does
Renters vote less often than owners. About 73% of households in 60637 rent, about 48 points above the U.S. average of 25%. Limited routine healthcare access lines up with lower turnout, and 60637 sits in the bottom quarter on routine-care measures. High food insecurity lines up with lower turnout, and about 37% of adults in 60637 report food insecurity, above 97% 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.