Chelsea leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About more than 99% of adults in Chelsea typically vote, above the U.S. average of about 62%. Among adults in Chelsea, ~58% vote Democratic, ~42% Republican, and ~0% don't vote. The map below shows estimated turnout by block group.
How Chelsea compares
Among cities within 25 miles, Chelsea leans more Democratic than 53 of 59 neighbors.
Chelsea runs about 18 points more Democratic than Michigan as a whole. Michigan is roughly evenly split, and Chelsea sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within Chelsea. The east side runs the most Democratic (D+30) and the southwest side runs the most Republican (Even), a spread of about 32 points.
Why Chelsea leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Chelsea, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 52% of adults in Chelsea hold a bachelor's degree, about 24 points above the U.S. average of 28%. Dense areas vote Democratic, and Chelsea sits in the top fifth on density (about 44%, above 85% of cities). Chelsea runs against the grain of Michigan, a Democratic-leaning outlier in a roughly evenly split state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Chelsea, MI sits in the top 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 Chelsea looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Chelsea 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 80%, about 20 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in Chelsea have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lima Center, MI Even
- Waterloo, MI R+16
- Unadilla, MI R+19
- Dexter, MI D+19
- Hudson Mills, MI Even
- Hell, MI R+10
- Grass Lake, MI R+26
- Trist, MI R+30
- Gregory, MI R+25
- Williamsville, MI R+29
Cities with Similar Populations
- Pearl River, LA R+52
- Lanett, AL D+3
- Farmingdale, NY R+15
- Monticello, AR R+21
- Garden City, GA D+31
- Gulfport, FL D+7
- Fallston, MD R+26
- Saltillo, MS R+59
- Mattawan, MI R+15
- Ketchikan, AK Even
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.