Flat Rock leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 91% of adults in Flat Rock typically vote, above the U.S. average of about 62%. Among adults in Flat Rock, ~40% vote Democratic, ~51% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How Flat Rock compares
Among cities within 25 miles, Flat Rock leans more Republican than 34 of 60 neighbors.
Flat Rock runs about 11 points more Republican than Michigan as a whole.
Politics vary noticeably by neighborhood within Flat Rock. The southwest side is the most Republican-leaning (R+23) and the northeast side is the least Republican-leaning (R+6), a spread of about 17 points.
Why Flat Rock 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 Flat Rock, not a ranked or complete list of what matters most.
Flat Rock votes Republican even though it is densely developed (about 69%, far above the Michigan average of 31%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Flat Rock, MI sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Flat Rock looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Flat Rock 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 71%, about 11 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Woodhaven, MI R+6
- Trenton, MI R+7
- South Rockwood, MI R+34
- Rockwood, MI R+18
- Gibraltar, MI R+20
- Waltz, MI R+31
- New Boston, MI R+27
- Riverview, MI R+5
- Carleton, MI R+36
- Grosse Ile, MI R+13
Cities with Similar Populations
- Hingham, MA D+28
- Inverness, FL R+42
- Fountain Hills, AZ R+21
- Onalaska, WI D+6
- Washington, MI R+36
- Eastmont, WA D+7
- Beckley, WV R+19
- Millbrae, CA D+40
- Zebulon, NC R+8
- Greenbelt, MD D+69
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.