Vandalia leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 88% of adults in Vandalia typically vote, above the U.S. average of about 62%. Among adults in Vandalia, ~29% vote Democratic, ~59% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Vandalia compares
Among cities within 25 miles, Vandalia leans more Republican than 34 of 66 neighbors.
Vandalia runs about 32 points more Republican than Michigan as a whole.
Politics vary noticeably by neighborhood within Vandalia. The northeast side is the most Republican-leaning (R+41) and the southwest side is the least Republican-leaning (R+29), a spread of about 12 points.
Why Vandalia leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Vandalia. The lean here lands roughly where demographic data alone would predict.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Vandalia, MI sits in the bottom 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 Vandalia looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Vandalia 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 69%, about 9 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Jones, MI R+39
- Calvin Center, MI R+30
- Cassopolis, MI R+21
- Penn, MI R+33
- Wakelee, MI R+41
- Union, MI R+41
- La Grange, MI R+23
- Nicholsville, MI R+38
- Marcellus, MI R+35
- Edwardsburg, MI R+32
Cities with Similar Populations
- Tonka Bay, MN D+16
- High Falls, NY D+34
- Carson, VA R+28
- Stantonville, TN R+78
- Wausau, FL R+71
- Sunset Beach, CA R+15
- Appleton, MN R+33
- Damon, TX R+66
- Clio, SC D+29
- Lake Tomahawk, WI R+23
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Michigan Department of State, 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.