Campton Hills leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 93% of adults in Campton Hills typically vote, above the U.S. average of about 62%. Among adults in Campton Hills, ~40% vote Democratic, ~53% Republican, and ~7% don't vote. The map below shows estimated turnout by block group.
How Campton Hills compares
Among cities within 25 miles, Campton Hills leans more Republican than 86 of 112 neighbors.
Campton Hills runs about 25 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Campton Hills is one of the few Republican-leaning pockets.
Why Campton 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 Campton Hills, not a ranked or complete list of what matters most.
Campton Hills votes Republican even though it is densely developed (about 52%, well above the Illinois average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 90% of households in Campton Hills are family households, in the top fraction of cities. Campton 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; Campton Hills, 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 Campton Hills looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Campton Hills 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 75%, about 15 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 99% of households in Campton Hills own their home, about 24 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in Campton Hills have completed high school, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lily Lake, IL R+15
- Lafox, IL R+6
- St. Charles, IL D+6
- Elburn, IL R+14
- Wasco, IL R+37
- South Elgin, IL D+4
- Geneva, IL D+12
- Mooseheart, IL D+7
- Wayne, IL R+7
- North Plato, IL R+23
Cities with Similar Populations
- Hopkins, SC D+45
- Fairless Hills, PA Even
- Cedar Creek, TX R+19
- Delta, CO R+42
- Byhalia, MS R+32
- Smithville, TN R+62
- Glen Rock, NJ D+22
- Edgewater, MD D+4
- Vermillion, SD D+11
- Medfield, MA D+32
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.