62466 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 52% of adults in 62466 typically vote, below the U.S. average of about 62%. Among adults in 62466, ~16% vote Democratic, ~36% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How 62466 compares
Among zip codes within 15 miles, 62466 is the least Republican-leaning.
62466 runs about 49 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62466 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 62466. The southeast side is the most Republican-leaning (R+67) and the west side is the least Republican-leaning (R+21), a spread of about 46 points.
Why 62466 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 62466, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 8% of adults in 62466 hold a bachelor's degree, about 19 points below the Illinois average of 27%. 62466 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 62466, IL sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 62466 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 62466 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Low high-school completion lines up with lower turnout, and about 74% of adults in 62466 have completed high school, below 96% 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.