62865 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 77% of adults in 62865 typically vote, above the U.S. average of about 62%. Among adults in 62865, ~17% vote Democratic, ~60% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 62865 compares
Among zip codes within 15 miles, 62865 leans more Republican than 21 of 27 neighbors.
62865 runs about 68 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62865 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 62865. The west side is the most Republican-leaning (R+61) and the east side is the least Republican-leaning (R+50), a spread of about 10 points.
Why 62865 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 62865, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 12% of adults in 62865 hold a bachelor's degree, about 15 points below the Illinois average of 27%. Car-dependent areas vote Republican, and about 83% of residents in 62865 drive to work alone, above 81% of zip codes. 62865 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Renting and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 62865, IL sits in the bottom quarter nationally on this measure.
Why turnout in 62865 looks the way it does
Homeowners vote more often than renters. About 89% of households in 62865 own their home, about 10 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.