Kildeer leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 88% of adults in Kildeer typically vote, above the U.S. average of about 62%. Among adults in Kildeer, ~48% vote Democratic, ~40% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Kildeer compares
Among cities within 25 miles, Kildeer leans more Democratic than 91 of 170 neighbors.
Politically, Kildeer sits close to the rest of Illinois.
Politics vary noticeably by neighborhood within Kildeer. The west side is the most Democratic-leaning (D+16) and the east side is the least Democratic-leaning (D+5), a spread of about 10 points.
Why Kildeer 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 Kildeer, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 76% of adults in Kildeer hold a bachelor's degree, about 47 points above the U.S. average of 28%. Dense areas vote Democratic, and Kildeer sits in the top fifth on density (about 73%, above 93% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Kildeer, IL sits in the top quarter nationally on this measure.
Why turnout in Kildeer looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Kildeer 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 76%, about 16 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 96% of households in Kildeer own their home, about 21 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 96% of adults in Kildeer have completed high school, above 83% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lake Zurich, IL D+10
- Deer Park, IL D+9
- Long Grove, IL D+14
- Hawthorn Woods, IL D+3
- North Barrington, IL D+6
- Palatine, IL D+19
- Barrington, IL D+8
- Buffalo Grove, IL D+25
- Indian Creek, IL D+25
- Vernon Hills, IL D+28
Cities with Similar Populations
- Union Beach, NJ R+24
- Baldwin, WI R+28
- Chilhowie, VA R+60
- Ephraim, UT R+50
- East Quogue, NY R+8
- Trevor, WI R+23
- Exeter, RI R+3
- New London, NC R+56
- Townsend, MA R+10
- Boiling Spring Lakes, NC R+43
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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.