North Aurora leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 75% of adults in North Aurora typically vote, above the U.S. average of about 62%. Among adults in North Aurora, ~41% vote Democratic, ~34% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How North Aurora compares
Among cities within 25 miles, North Aurora leans more Democratic than 73 of 117 neighbors.
Politically, North Aurora sits close to the rest of Illinois.
Politics vary noticeably by neighborhood within North Aurora. The southwest side runs the most Democratic (D+20) and the northwest side runs the most Republican (R+8), a spread of about 27 points.
Why North Aurora 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 North Aurora, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 75% of residents in North Aurora live in densely developed areas, about 39 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and North Aurora sits in the top quarter (about 40%, above 88% of cities). A high never-married share predicts Democratic voting, and about 32% of adults in North Aurora have never been married, above 80% of cities.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; North Aurora, IL sits in the top tenth 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 North Aurora looks the way it does
Areas with strong routine healthcare access turn out at higher rates. North Aurora 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
- Batavia, IL D+15
- Mooseheart, IL D+7
- Aurora, IL D+29
- Geneva, IL D+12
- Sugar Grove, IL R+10
- Nottingham Woods, IL R+21
- Eola, IL D+29
- Lafox, IL R+6
- Montgomery, IL D+14
- Boulder Hill, IL D+7
Cities with Similar Populations
- Elkins Park, PA D+70
- Walterboro, SC R+6
- Seaford, NY R+35
- Wade Hampton, SC R+13
- Rex, GA D+68
- Jerome, ID R+43
- La Grange, IL D+31
- Marlboro, NJ R+14
- Tinton Falls, NJ Even
- Baker, LA D+56
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.