61919 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 74% of adults in 61919 typically vote, above the U.S. average of about 62%. Among adults in 61919, ~16% vote Democratic, ~58% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 61919 compares
Among zip codes within 15 miles, 61919 leans more Republican than 10 of 15 neighbors.
61919 runs about 67 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61919 is one of the few Republican-leaning pockets.
Why 61919 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 61919, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 91% of residents in 61919 drive to work alone, about 17 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 78% of households in 61919 are family households, above 87% of zip codes. 61919 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 61919, IL sits in the top quarter nationally on this measure.
Why turnout in 61919 looks the way it does
Homeowners vote more often than renters. About 89% of households in 61919 own their home, about 9 points above the Illinois average of 80%. High high-school completion lines up with higher turnout, and about 96% of adults in 61919 have completed high school, above 81% of 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.