Merrionette Park leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 56% of adults in Merrionette Park typically vote, below the U.S. average of about 62%. Among adults in Merrionette Park, ~33% vote Democratic, ~23% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How Merrionette Park compares
Among cities within 25 miles, Merrionette Park leans more Democratic than 79 of 148 neighbors.
Merrionette Park runs about 6 points more Democratic than Illinois as a whole.
Politics vary noticeably by neighborhood within Merrionette Park. The southwest side is the most Democratic-leaning (D+26) and the southeast side is the least Democratic-leaning (D+11), a spread of about 15 points.
Why Merrionette Park 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 Merrionette Park, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in Merrionette Park live in densely developed areas, about 62 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 53% of adults in Merrionette Park have never been married, in the top fraction of cities.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Merrionette Park, IL sits in the top tenth nationally 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 Merrionette Park looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Merrionette Park is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 38% of households in Merrionette Park rent, above 93% of cities. High food insecurity lines up with lower turnout, and about 22% of adults in Merrionette Park report food insecurity, above 85% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Alsip, IL D+17
- Blue Island, IL D+46
- Calumet Park, IL D+81
- Evergreen Park, IL D+31
- Robbins, IL D+77
- Crestwood, IL D+5
- Oak Lawn, IL D+2
- Posen, IL D+33
- Hometown, IL R+3
- Dixmoor, IL D+53
Cities with Similar Populations
- Pilot, VA R+54
- Tahuya, WA R+10
- Rocky Mount, MO R+59
- Applegate, MI R+49
- Beverly Hills, TX Even
- Hopedale, IL R+51
- Cuba, IL R+38
- Racetrack, MT R+49
- Russia, OH R+72
- Dewy Rose, GA R+45
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.