61936 leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About more than 99% of adults in 61936 typically vote, above the U.S. average of about 62%. Among adults in 61936, ~26% vote Democratic, ~75% Republican, and ~-1% don't vote. The map below shows estimated turnout by block group.
How 61936 compares
Among zip codes within 15 miles, 61936 leans more Republican than 11 of 18 neighbors.
61936 runs about 59 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61936 is one of the few Republican-leaning pockets.
Why 61936 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 61936, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 6% of residents in 61936 live in densely developed areas, about 27 points below the Illinois average of 33%. A high family-household share predicts Republican voting, and about 85% of households in 61936 are family households, above 97% of zip codes. 61936 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; 61936, IL sits in the top tenth nationally on this measure.
Why turnout in 61936 looks the way it does
Homeowners vote more often than renters. More than 99% of households in 61936 own their home, about 20 points above the Illinois average of 80%. High high-school completion lines up with higher turnout, and more than 99% of adults in 61936 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.