Clinton County leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 92% of adults in Clinton County typically vote, above the U.S. average of about 62%. Among adults in Clinton County, ~40% vote Democratic, ~52% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.
How Clinton County compares
Among counties within 50 miles, Clinton County leans more Republican than 5 of 12 neighbors.
Clinton County runs about 11 points more Republican than Michigan as a whole.
Politics vary noticeably by city within Clinton County. The southeast side runs the most Democratic (D+11) and the northwest side runs the most Republican (R+46), a spread of about 57 points.
Why Clinton County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Clinton County. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Clinton County, MI sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Clinton County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Clinton 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 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 83% of households in Clinton County own their home, above 91% of counties. High high-school completion lines up with higher turnout, and about 95% of adults in Clinton County have completed high school, above 93% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Ingham County, MI D+31
- Eaton County, MI R+8
- Shiawassee County, MI R+27
- Ionia County, MI R+30
- Gratiot County, MI R+28
- Livingston County, MI R+23
- Montcalm County, MI R+41
- Genesee County, MI D+8
- Barry County, MI R+34
- Jackson County, MI R+14
Counties with Similar Populations
- Chelan County, WA R+12
- Lynchburg City, VA D+10
- Bedford County, VA R+43
- Wilson County, NC D+11
- Sullivan County, NY R+11
- Oconee County, SC R+54
- Hancock County, IN R+36
- Clinton County, NY R+5
- Putnam County, TN R+43
- Natrona County, WY R+41
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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.