61747 is a Republican stronghold. About 25% of voters here vote Democratic and 75% Republican.
About 70% of adults in 61747 typically vote, above the U.S. average of about 62%. Among adults in 61747, ~17% vote Democratic, ~53% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 61747 compares
Among zip codes within 15 miles, 61747 leans more Republican than 12 of 17 neighbors.
61747 runs about 61 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61747 is one of the few Republican-leaning pockets.
Why 61747 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 61747, not a ranked or complete list of what matters most.
61747 votes against the grain of Illinois. Illinois leans Democratic overall, while 61747 runs about 61 points more Republican. Car-dependent areas vote Republican, and about 83% of residents in 61747 drive to work alone, above 82% of zip codes.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 61747, IL sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 61747 looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in 61747 have completed high school, about 7 points above the U.S. average of 90%. 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.