60431 is a true toss-up. About 51% of voters here vote Democratic and 49% Republican.
About 75% of adults in 60431 typically vote, above the U.S. average of about 62%. Among adults in 60431, ~38% vote Democratic, ~37% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How 60431 compares
Among zip codes within 15 miles, 60431 sits roughly in the middle of the political spectrum, with 11 neighbors leaning further in the place's direction and 17 leaning the other way.
60431 runs about 9 points more Republican than Illinois as a whole.
Politics vary noticeably by block within 60431. The northwest side runs the most Democratic (D+19) and the southwest side runs the most Republican (R+17), a spread of about 36 points.
Why 60431 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 60431. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 60431, IL sits in the top quarter 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 60431 looks the way it does
Homeowners vote more often than renters. About 92% of households in 60431 own their home, about 13 points above the Illinois average of 80%. 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.