48042 leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About more than 99% of adults in 48042 typically vote, above the U.S. average of about 62%. Among adults in 48042, ~34% vote Democratic, ~68% Republican, and ~-2% don't vote. The map below shows estimated turnout by block group.
How 48042 compares
Among zip codes within 15 miles, 48042 leans more Republican than 31 of 40 neighbors.
48042 runs about 32 points more Republican than Michigan as a whole.
Politics vary noticeably by block within 48042. The northwest side is the most Republican-leaning (R+38) and the southeast side is the least Republican-leaning (R+25), a spread of about 13 points.
Why 48042 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 48042, not a ranked or complete list of what matters most.
48042 votes Republican even though it is densely developed (about 78%, far above the Michigan average of 31%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 80% of households in 48042 are family households, above 92% of zip codes.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 48042, MI sits in the top tenth nationally 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 48042 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 48042 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 76%, about 16 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 97% of households in 48042 own their home, compared to around 79% in nearby 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.