62907 is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 65% of adults in 62907 typically vote, near the U.S. average of about 62%. Among adults in 62907, ~13% vote Democratic, ~52% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How 62907 compares
Among zip codes within 15 miles, 62907 leans more Republican than 10 of 12 neighbors.
62907 runs about 70 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62907 is one of the few Republican-leaning pockets.
Why 62907 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 62907, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 62907, about 98% of residents are non-Hispanic white, about 26 points above the U.S. average of 72%; about 15% of adults hold a bachelor's degree, about 11 points below the Illinois average of 27%. A high family-household share predicts Republican voting, and about 79% of households in 62907 are family households, above 90% of zip codes. 62907 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Republican lean
Places with low population density tend to lean Republican; 62907, IL sits in the bottom quarter nationally on this measure.
Why turnout in 62907 looks the way it does
Homeowners vote more often than renters. About 88% of households in 62907 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.