60550 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 70% of adults in 60550 typically vote, above the U.S. average of about 62%. Among adults in 60550, ~22% vote Democratic, ~48% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 60550 compares
Among zip codes within 15 miles, 60550 leans more Republican than 7 of 13 neighbors.
60550 runs about 47 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 60550 is one of the few Republican-leaning pockets.
Why 60550 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 60550, not a ranked or complete list of what matters most.
60550 votes against the grain of Illinois. Illinois leans Democratic overall, while 60550 runs about 47 points more Republican.
Developed land and Republican lean
Places with a rural land-use pattern tend to lean Republican; 60550, IL sits below the national average on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 60550 looks the way it does
Turnout in 60550 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.