61774 leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 80% of adults in 61774 typically vote, above the U.S. average of about 62%. Among adults in 61774, ~22% vote Democratic, ~58% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How 61774 compares
Among zip codes within 15 miles, 61774 leans more Republican than 9 of 18 neighbors.
61774 runs about 55 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61774 is one of the few Republican-leaning pockets.
Why 61774 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 61774, not a ranked or complete list of what matters most.
61774 votes against the grain of Illinois. Illinois leans Democratic overall, while 61774 runs about 55 points more Republican. Rural areas vote Republican, and 61774 sits in the bottom quarter on density (about 5%, below 79% of zip codes). A high white share with below-average college attainment predicts Republican voting, and 61774 fits that profile on both counts.
Population density and Republican lean
Places with low population density tend to lean Republican; 61774, IL sits in the bottom quarter nationally on this measure.
Why turnout in 61774 looks the way it does
Homeowners vote more often than renters. About 90% of households in 61774 own their home, about 10 points above the Illinois average of 80%. High high-school completion lines up with higher turnout, and about 96% of adults in 61774 have completed high school, above 85% 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.