62425 is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 80% of adults in 62425 typically vote, above the U.S. average of about 62%. Among adults in 62425, ~14% vote Democratic, ~67% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How 62425 compares
Among zip codes within 15 miles, 62425 leans more Republican than 5 of 11 neighbors.
62425 runs about 77 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62425 is one of the few Republican-leaning pockets.
Why 62425 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 62425, not a ranked or complete list of what matters most.
62425 votes against the grain of Illinois. Illinois leans Democratic overall, while 62425 runs about 77 points more Republican. A high family-household share predicts Republican voting, and about 76% of households in 62425 are family households, above 84% of zip codes.
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 62425, IL does.
Why turnout in 62425 looks the way it does
Homeowners vote more often than renters. About 91% of households in 62425 own their home, about 11 points above the Illinois average of 80%. High high-school completion lines up with higher turnout, and about 97% of adults in 62425 have completed high school, above 89% 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.