Matteson is a Democratic stronghold. About 85% of voters here vote Democratic and 15% Republican.
About 79% of adults in Matteson typically vote, above the U.S. average of about 62%. Among adults in Matteson, ~67% vote Democratic, ~12% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Matteson compares
Among cities within 25 miles, Matteson leans more Democratic than 114 of 133 neighbors.
Matteson runs about 59 points more Democratic than Illinois as a whole.
Politics vary noticeably by neighborhood within Matteson. The northeast side is the most Democratic-leaning (D+83) and the southwest side is the least Democratic-leaning (D+11), a spread of about 72 points.
Why Matteson leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Matteson, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 82% of residents in Matteson live in densely developed areas, about 45 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Matteson sits in the top quarter (about 38%, above 85% of cities). A high never-married share predicts Democratic voting, and about 36% of adults in Matteson have never been married, above 89% of cities.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Matteson, IL sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Matteson looks the way it does
Turnout in Matteson 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 Cities
- Richton Park, IL D+79
- Olympia Fields, IL D+77
- Frankfort Square, IL R+13
- Lincoln Estates, IL R+12
- Park Forest, IL D+69
- Country Club Hills, IL D+79
- Flossmoor, IL D+72
- Hazel Crest, IL D+80
- Chicago Heights, IL D+50
- Homewood, IL D+60
Cities with Similar Populations
- Corinth, MS R+47
- Clifton, CO R+26
- Latham, NY D+16
- Lucedale, MS R+78
- Pelham, AL R+31
- Kingsland, GA R+30
- Coralville, IA D+44
- Haslett, MI D+31
- North Liberty, IA D+24
- Collinsville, OK R+38
All Local Stats
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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.