61259 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 86% of adults in 61259 typically vote, above the U.S. average of about 62%. Among adults in 61259, ~27% vote Democratic, ~59% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How 61259 compares
Among zip codes within 15 miles, 61259 leans more Republican than 9 of 12 neighbors.
61259 runs about 49 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61259 is one of the few Republican-leaning pockets.
Why 61259 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 61259, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in 61259 live in densely developed areas, about 27 points below the Illinois average of 33%. 61259 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Republican lean
Places with low population density tend to lean Republican; 61259, IL sits in the bottom quarter nationally on this measure.
Why turnout in 61259 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 61259 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 68%, about 8 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 89% of households in 61259 own their home, above 84% of zip codes. High high-school completion lines up with higher turnout, and about 97% of adults in 61259 have completed high school, above 88% 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.