48658 leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 81% of adults in 48658 typically vote, above the U.S. average of about 62%. Among adults in 48658, ~24% vote Democratic, ~57% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How 48658 compares
Among zip codes within 15 miles, 48658 is the least Republican-leaning.
48658 runs about 38 points more Republican than Michigan as a whole.
Politics vary noticeably by block within 48658. The southwest side is the most Republican-leaning (R+47) and the west side is the least Republican-leaning (R+33), a spread of about 13 points.
Why 48658 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 48658, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 14% of adults in 48658 hold a bachelor's degree, about 13 points below the Michigan average of 26%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 48658, MI sits above the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 48658 looks the way it does
Turnout in 48658 sits close to the national pattern. 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.