Kent County leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 82% of adults in Kent County typically vote, above the U.S. average of about 62%. Among adults in Kent County, ~45% vote Democratic, ~37% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Kent County compares
Among counties within 50 miles, Kent County leans more Democratic than 9 of 10 neighbors.
Kent County runs about 11 points more Democratic than Michigan as a whole.
Politics vary noticeably by city within Kent County. The west side runs the most Democratic (D+24) and the northeast side runs the most Republican (R+19), a spread of about 43 points.
Why Kent County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Kent County, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 76% of residents in Kent County live in densely developed areas, about 39 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Kent County sits in the top quarter (about 41%, above 92% of counties). A high never-married share predicts Democratic voting, and about 34% of adults in Kent County have never been married, above 81% of counties.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Kent County, MI sits in the top tenth 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 Kent County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Kent County 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%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Ottawa County, MI R+16
- Ionia County, MI R+30
- Allegan County, MI R+28
- Barry County, MI R+34
- Montcalm County, MI R+41
- Muskegon County, MI Even
- Newaygo County, MI R+40
- Kalamazoo County, MI D+17
- Mecosta County, MI R+26
- Eaton County, MI R+8
Counties with Similar Populations
- Utah County, UT R+36
- Providence County, RI D+20
- Arapahoe County, CO D+22
- Tulsa County, OK Even
- Bucks County, PA Even
- Monmouth County, NJ R+8
- Jefferson County, AL D+20
- Bernalillo County, NM D+21
- Ocean County, NJ R+39
- District of Columbia, DC D+80
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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.