Waddams Grove leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 67% of adults in Waddams Grove typically vote, near the U.S. average of about 62%. Among adults in Waddams Grove, ~18% vote Democratic, ~50% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Waddams Grove compares
Among cities within 25 miles, Waddams Grove leans more Republican than 54 of 56 neighbors.
Waddams Grove runs about 59 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Waddams Grove is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Waddams Grove. The southeast side is the most Republican-leaning (R+49) and the southwest side is the least Republican-leaning (R+39), a spread of about 10 points.
Why Waddams Grove 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 Waddams Grove, not a ranked or complete list of what matters most.
Waddams Grove votes against the grain of Illinois. Illinois leans Democratic overall, while Waddams Grove runs about 59 points more Republican.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Waddams Grove, IL sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Waddams Grove looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Waddams Grove 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 68%, about 8 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lena, IL R+43
- Nora, IL R+42
- Winslow, IL R+49
- Kent, IL R+42
- Mc Connell, IL R+47
- Winslow, WI R+42
- Warren, IL R+37
- Stockton, IL R+28
- Eleroy, IL R+41
- Red Oak, IL R+45
Cities with Similar Populations
- Acosta, PA R+64
- Pomona, IL R+45
- Imperial, TX R+54
- Chestnut Ridge, IN R+61
- Evansville, AL D+19
- Charlton, MS R+3
- Shady Grove, IA R+42
- Stumptown, PA R+46
- Oswegatchie, NY R+26
- Molina, CO R+54
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.