48721 leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 75% of adults in 48721 typically vote, above the U.S. average of about 62%. Among adults in 48721, ~26% vote Democratic, ~49% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How 48721 compares
Among zip codes within 15 miles, 48721 leans more Republican than 1 of 5 neighbors.
48721 runs about 31 points more Republican than Michigan as a whole.
Why 48721 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 48721, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in 48721 live in densely developed areas, about 27 points below the Michigan average of 31%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 48721, MI sits in the bottom quarter 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 48721 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 48721 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%. Homeowners vote more often than renters, and about 92% of households in 48721 own their home, about 17 points above the U.S. average of 75%. 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.