62933 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 92% of adults in 62933 typically vote, above the U.S. average of about 62%. Among adults in 62933, ~29% vote Democratic, ~63% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.
How 62933 compares
Among zip codes within 15 miles, 62933 leans more Republican than 7 of 23 neighbors.
62933 runs about 47 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62933 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 62933. The southwest side is the most Republican-leaning (R+39) and the southeast side is the least Republican-leaning (R+22), a spread of about 17 points.
Why 62933 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 62933, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 86% of residents in 62933 drive to work alone, about 13 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 74% of households in 62933 are family households, above 78% of zip codes. 62933 runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as 62933, IL does.
Why turnout in 62933 looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in 62933 have completed high school, about 6 points above the U.S. average of 90%. 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.