61072 leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About 93% of adults in 61072 typically vote, above the U.S. average of about 62%. Among adults in 61072, ~37% vote Democratic, ~56% Republican, and ~7% don't vote. The map below shows estimated turnout by block group.
How 61072 compares
Among zip codes within 15 miles, 61072 leans more Republican than 15 of 20 neighbors.
61072 runs about 30 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61072 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 61072. The northwest side is the most Republican-leaning (R+30) and the north side is the least Republican-leaning (R+12), a spread of about 18 points.
Why 61072 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 61072, not a ranked or complete list of what matters most.
61072 votes against the grain of Illinois. Illinois leans Democratic overall, while 61072 runs about 30 points more Republican.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as 61072, IL does.
Why turnout in 61072 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 61072 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%. High high-school completion lines up with higher turnout, and about 97% of adults in 61072 have completed high school, above 88% 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.