Palos Park leans slightly Republican by roughly 8 points: about 46% of voters vote Democratic and 54% Republican.
About 88% of adults in Palos Park typically vote, above the U.S. average of about 62%. Among adults in Palos Park, ~40% vote Democratic, ~48% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Palos Park compares
Among cities within 25 miles, Palos Park leans more Republican than 127 of 157 neighbors.
Palos Park runs about 19 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Palos Park is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Palos Park. The northwest side is the most Republican-leaning (R+17) and the south side is the least Republican-leaning (R+5), a spread of about 12 points.
Why Palos 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 Palos Park, not a ranked or complete list of what matters most.
Palos Park votes Republican even though it is densely developed (about 69%, far above the Illinois average of 33%). Here an older population outweighs the Democratic lean that density usually predicts. Palos Park runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Palos Park, IL sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Palos Park looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Palos Park is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 90% of households in Palos Park own their home, about 15 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Palos Hills, IL R+11
- Palos Heights, IL R+8
- Orland Park, IL R+9
- Worth, IL R+13
- Sag Bridge, IL R+22
- Hickory Hills, IL R+11
- Chicago Ridge, IL R+3
- Orland Hills, IL Even
- Willow Springs, IL R+12
- Crestwood, IL D+5
Cities with Similar Populations
- Milton, WI R+19
- Rio Vista, CA D+3
- Pine Hill, NJ D+26
- Templeton, CA R+18
- Canton, NY D+14
- East York, PA Even
- Washington Terrace, UT R+16
- Seneca Falls, NY R+12
- Landenberg, PA D+8
- Coral Hills, MD D+86
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.