62289 leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 73% of adults in 62289 typically vote, above the U.S. average of about 62%. Among adults in 62289, ~22% vote Democratic, ~51% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How 62289 compares
Among zip codes within 15 miles, 62289 leans more Republican than 14 of 23 neighbors.
62289 runs about 50 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62289 is one of the few Republican-leaning pockets.
Why 62289 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 62289, not a ranked or complete list of what matters most.
62289 votes against the grain of Illinois. Illinois leans Democratic overall, while 62289 runs about 50 points more Republican. A high family-household share predicts Republican voting, and about 76% of households in 62289 are family households, above 84% of zip codes.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 62289, IL sits above the national average on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 62289 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 62289 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 69%, about 9 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 89% of households in 62289 own their home, compared to around 73% in nearby 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.