62690 leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 80% of adults in 62690 typically vote, above the U.S. average of about 62%. Among adults in 62690, ~24% vote Democratic, ~56% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How 62690 compares
Among zip codes within 15 miles, 62690 leans more Republican than 4 of 14 neighbors.
62690 runs about 51 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62690 is one of the few Republican-leaning pockets.
Why 62690 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 62690, not a ranked or complete list of what matters most.
62690 votes against the grain of Illinois. Illinois leans Democratic overall, while 62690 runs about 51 points more Republican. A high white share with below-average college attainment predicts Republican voting, and 62690 fits that profile on both counts.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; 62690, IL sits in the top quarter nationally on this measure.
Why turnout in 62690 looks the way it does
Turnout in 62690 sits close to the national pattern. 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.