62650 leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 66% of adults in 62650 typically vote, near the U.S. average of about 62%. Among adults in 62650, ~28% vote Democratic, ~38% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How 62650 compares
Among zip codes within 15 miles, 62650 is the least Republican-leaning.
62650 runs about 27 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62650 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 62650. The southwest side is the most Republican-leaning (R+34) and the west side is the least Republican-leaning (R+8), a spread of about 26 points.
Why 62650 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 62650, not a ranked or complete list of what matters most.
62650 votes Republican even though it is densely developed (about 68%, far above the Illinois average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here. 62650 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 62650, IL sits in the top quarter nationally on this measure.
Why turnout in 62650 looks the way it does
Turnout in 62650 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.