61274 leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 99% of adults in 61274 typically vote, above the U.S. average of about 62%. Among adults in 61274, ~27% vote Democratic, ~72% Republican, and ~1% don't vote. The map below shows estimated turnout by block group.
How 61274 compares
Among zip codes within 15 miles, 61274 is the most Republican-leaning.
61274 runs about 56 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61274 is one of the few Republican-leaning pockets.
Why 61274 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 61274, not a ranked or complete list of what matters most.
Rural areas with a high white share vote Republican. 61274 sits in the bottom quarter on density and about 99% of residents are non-Hispanic white, about 17 points above the Illinois average of 81%. 61274 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 61274, IL sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 61274 looks the way it does
Homeowners vote more often than renters. About 90% of households in 61274 own their home, about 11 points above the Illinois average of 80%. 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.