60103 is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.
About 75% of adults in 60103 typically vote, above the U.S. average of about 62%. Among adults in 60103, ~39% vote Democratic, ~36% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How 60103 compares
Among zip codes within 15 miles, 60103 leans more Democratic than 14 of 55 neighbors.
60103 runs about 7 points more Republican than Illinois as a whole.
Politics vary noticeably by block within 60103. The north side runs the most Democratic (D+10) and the west side runs the most Republican (R+3), a spread of about 13 points.
Why 60103 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 60103. The lean here lands roughly where demographic data alone would predict.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 60103, IL sits in the top quarter nationally on this measure.
Why turnout in 60103 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 60103 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 69%, about 9 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 89% of households in 60103 own their home, above 85% 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.