61925 is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 69% of adults in 61925 typically vote, above the U.S. average of about 62%. Among adults in 61925, ~14% vote Democratic, ~54% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How 61925 compares
Among zip codes within 15 miles, 61925 leans more Republican than 16 of 19 neighbors.
61925 runs about 69 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61925 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 61925. The southeast side is the most Republican-leaning (R+62) and the northwest side is the least Republican-leaning (R+52), a spread of about 10 points.
Why 61925 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 61925, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 61925, about 97% of residents are non-Hispanic white, about 24 points above the U.S. average of 72%; about 18% of adults hold a bachelor's degree, about 8 points below the Illinois average of 27%. Car-dependent areas vote Republican, and about 86% of residents in 61925 drive to work alone, above 89% of zip codes. 61925 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; 61925, IL sits below the national average on this measure.
Why turnout in 61925 looks the way it does
Turnout in 61925 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.