60404 leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 89% of adults in 60404 typically vote, above the U.S. average of about 62%. Among adults in 60404, ~42% vote Democratic, ~47% Republican, and ~11% don't vote. The map below shows estimated turnout by block group.
How 60404 compares
Among zip codes within 15 miles, 60404 leans more Republican than 15 of 23 neighbors.
60404 runs about 17 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 60404 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 60404. The north side runs the most Democratic (D+2) and the southeast side runs the most Republican (R+22), a spread of about 24 points.
Why 60404 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 60404, not a ranked or complete list of what matters most.
60404 votes Republican even though it is densely developed (about 78%, far above the Illinois average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 76% of households in 60404 are family households, above 82% of zip codes. 60404 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 60404, IL sits in the top tenth nationally on this measure.
Why turnout in 60404 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 60404 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 70%, about 10 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in 60404 own their home, compared to around 77% in nearby zip codes. High high-school completion lines up with higher turnout, and about 97% of adults in 60404 have completed high school, above 86% 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.