62801 leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 62% of adults in 62801 typically vote, near the U.S. average of about 62%. Among adults in 62801, ~20% vote Democratic, ~42% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How 62801 compares
Among zip codes within 15 miles, 62801 is the least Republican-leaning.
62801 runs about 45 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62801 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 62801. The southeast side is the most Republican-leaning (R+52) and the east side is the least Republican-leaning (R+26), a spread of about 26 points.
Why 62801 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 62801, not a ranked or complete list of what matters most.
62801 votes against the grain of Illinois. Illinois leans Democratic overall, while 62801 runs about 45 points more Republican. Low college attainment predicts Republican voting, and 62801 sits in the bottom quarter (about 16%, below 77% of zip codes).
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 62801, IL sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 62801 looks the way it does
Turnout in 62801 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.