61348 leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 80% of adults in 61348 typically vote, above the U.S. average of about 62%. Among adults in 61348, ~33% vote Democratic, ~47% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How 61348 compares
Among zip codes within 15 miles, 61348 leans more Republican than 6 of 23 neighbors.
61348 runs about 29 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 61348 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 61348. The southeast side is the most Republican-leaning (R+39) and the north side is the least Republican-leaning (R+15), a spread of about 24 points.
Why 61348 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 61348, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in 61348 drive to work alone, about 13 points above the U.S. average of 74%. 61348 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 61348, IL sits above the national average 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 61348 looks the way it does
Turnout in 61348 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.