62274 is a Republican stronghold. About 25% of voters here vote Democratic and 75% Republican.
About 65% of adults in 62274 typically vote, near the U.S. average of about 62%. Among adults in 62274, ~16% vote Democratic, ~49% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How 62274 compares
Among zip codes within 15 miles, 62274 leans more Republican than 2 of 11 neighbors.
62274 runs about 61 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62274 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 62274. The northwest side is the most Republican-leaning (R+58) and the northeast side is the least Republican-leaning (R+44), a spread of about 14 points.
Why 62274 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 62274, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in 62274 drive to work alone, about 13 points above the U.S. average of 74%. 62274 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; 62274, IL sits in the bottom quarter nationally on this measure.
Why turnout in 62274 looks the way it does
Homeowners vote more often than renters. About 88% of households in 62274 own their home, about 9 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.