Palos Hills, IL Political Map | Democrat & Republican Areas in Palos Hills

By the BestNeighborhood data science team. Last updated May 2026.

Palos Hills leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.

 

About 71% of adults in Palos Hills typically vote, above the U.S. average of about 62%. Among adults in Palos Hills, ~31% vote Democratic, ~40% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.

How Palos Hills compares

Among cities within 25 miles, Palos Hills leans more Republican than 138 of 160 neighbors.

Palos Hills runs about 22 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Palos Hills is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Palos Hills. The north side runs the most Democratic (D+7) and the east side runs the most Republican (R+21), a spread of about 28 points.

Why Palos Hills 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 Hills, not a ranked or complete list of what matters most.

Palos Hills votes Republican even though it is densely developed (about 90%, far above the Illinois average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Palos Hills 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 Hills, IL sits above the national average 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 Hills looks the way it does

Turnout in Palos Hills 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.

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.