61313 is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 67% of adults in 61313 typically vote, near the U.S. average of about 62%. Among adults in 61313, ~16% vote Democratic, ~51% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 61313 compares
Among zip codes within 15 miles, 61313 leans more Republican than 8 of 11 neighbors.
61313 runs about 62 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61313 is one of the few Republican-leaning pockets.
Why 61313 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 61313, not a ranked or complete list of what matters most.
61313 votes against the grain of Illinois. Illinois leans Democratic overall, while 61313 runs about 62 points more Republican. Car-dependent areas vote Republican, and about 84% of residents in 61313 drive to work alone, above 83% of zip codes.
Never-married share, developed land, and voter turnout
Places that combine a low never-married share and a rural land-use pattern tend to turn out at a higher rate, as 61313, IL does.
Why turnout in 61313 looks the way it does
Homeowners vote more often than renters. About 89% of households in 61313 own their home, about 9 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.