61438 leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 68% of adults in 61438 typically vote, above the U.S. average of about 62%. Among adults in 61438, ~17% vote Democratic, ~51% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How 61438 compares
Among zip codes within 15 miles, 61438 leans more Republican than 8 of 13 neighbors.
61438 runs about 60 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61438 is one of the few Republican-leaning pockets.
Why 61438 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 61438, not a ranked or complete list of what matters most.
61438 votes against the grain of Illinois. Illinois leans Democratic overall, while 61438 runs about 60 points more Republican. Rural areas with a high white share vote Republican. Non-Hispanic white share in 61438 is about 96%, about 24 points above the U.S. average of 72%.
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as 61438, IL does.
Why turnout in 61438 looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in 61438 have completed high school, about 6 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.