60634 leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 56% of adults in 60634 typically vote, below the U.S. average of about 62%. Among adults in 60634, ~31% vote Democratic, ~25% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How 60634 compares
Among zip codes within 15 miles, 60634 leans more Democratic than 24 of 121 neighbors.
Politically, 60634 sits close to the rest of Illinois.
Politics vary noticeably by block within 60634. The southeast side runs the most Democratic (D+27) and the northwest side runs the most Republican (R+9), a spread of about 36 points.
Why 60634 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 60634, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 60634 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 36% of adults in 60634 have never been married, above 81% of zip codes.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 60634, IL sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 60634 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 60634 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.