Buchanan leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 83% of adults in Buchanan typically vote, above the U.S. average of about 62%. Among adults in Buchanan, ~32% vote Democratic, ~51% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Buchanan compares
Among cities within 25 miles, Buchanan leans more Republican than 33 of 71 neighbors.
Buchanan runs about 20 points more Republican than Michigan as a whole.
Politics vary noticeably by neighborhood within Buchanan. The northwest side is the most Republican-leaning (R+36) and the east side is the least Republican-leaning (R+14), a spread of about 22 points.
Why Buchanan 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 Buchanan, not a ranked or complete list of what matters most.
Buchanan votes Republican even though it is densely developed (about 43%, modestly above the Michigan average of 31%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Buchanan, MI sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Buchanan looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Buchanan 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 67%, about 7 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pennellwood, MI R+27
- Glendora, MI R+40
- Galien, MI R+38
- Niles, MI R+15
- Berrien Springs, MI D+14
- Hills Corners, MI R+27
- Chain-O-Lakes, IN R+6
- New Troy, MI R+40
- Hinchman, MI R+4
- Berrien Center, MI R+25
Cities with Similar Populations
- Getzville, NY D+12
- Berlin, NH R+19
- Oakwood, GA R+25
- Lakeville, MA R+9
- Myrtle Creek, OR R+33
- Incline Village, NV D+12
- Park Forest Village, PA D+44
- Colbert, WA R+31
- Willard, MO R+52
- Riverside, IL D+39
All Local Stats
Home Services
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.