60043 leans heavily Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.
About more than 99% of adults in 60043 typically vote, above the U.S. average of about 62%. Among adults in 60043, ~66% vote Democratic, ~35% Republican, and ~-1% don't vote. The map below shows estimated turnout by block group.
How 60043 compares
Among zip codes within 15 miles, 60043 leans more Democratic than 32 of 71 neighbors.
60043 runs about 19 points more Democratic than Illinois as a whole.
Why 60043 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 60043, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 91% of adults in 60043 hold a bachelor's degree, about 63 points above the U.S. average of 28%. Dense areas vote Democratic, and 60043 sits in the top fifth on density (more than 99%, above 97% of zip codes).
Population density and Democratic lean
Places with high population density tend to lean Democratic; 60043, IL sits in the top quarter nationally on this measure.
Why turnout in 60043 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 60043 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 81%, about 21 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 97% of households in 60043 own their home, compared to around 75% in nearby zip codes. High high-school completion lines up with higher turnout, and more than 99% of adults in 60043 have completed high school, in the top fraction 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.