48615 leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 88% of adults in 48615 typically vote, above the U.S. average of about 62%. Among adults in 48615, ~25% vote Democratic, ~63% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How 48615 compares
Among zip codes within 15 miles, 48615 leans more Republican than 5 of 8 neighbors.
48615 runs about 40 points more Republican than Michigan as a whole.
Why 48615 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 48615, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 16% of adults in 48615 hold a bachelor's degree, about 10 points below the Michigan average of 26%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 48615, MI sits in the bottom quarter 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 48615 looks the way it does
Turnout in 48615 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.