49643 leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 88% of adults in 49643 typically vote, above the U.S. average of about 62%. Among adults in 49643, ~37% vote Democratic, ~51% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How 49643 compares
Among zip codes within 15 miles, 49643 leans more Republican than 11 of 17 neighbors.
49643 runs about 14 points more Republican than Michigan as a whole.
Politics vary noticeably by block within 49643. The southwest side is the most Republican-leaning (R+37) and the east side is the least Republican-leaning (R+5), a spread of about 32 points.
Why 49643 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 49643. 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; 49643, MI sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 49643 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 49643 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 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 89% of households in 49643 own their home, above 85% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.