Old Mission leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.
About 95% of adults in Old Mission typically vote, above the U.S. average of about 62%. Among adults in Old Mission, ~60% vote Democratic, ~35% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How Old Mission compares
Among cities within 25 miles, Old Mission is the most Democratic-leaning.
Old Mission runs about 27 points more Democratic than Michigan as a whole. Michigan is roughly evenly split, and Old Mission sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within Old Mission. The north side is the most Democratic-leaning (D+28) and the west side is the least Democratic-leaning (D+17), a spread of about 11 points.
Why Old Mission 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 Old Mission, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 67% of adults in Old Mission hold a bachelor's degree, about 38 points above the U.S. average of 28%. Old Mission runs against the grain of Michigan, a Democratic-leaning outlier in a roughly evenly split state.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Old Mission, 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 Old Mission looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Old Mission 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 79%, about 19 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and more than 99% of adults in Old Mission have completed high school, in the top fraction of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Elk Rapids, MI Even
- Kewadin, MI R+8
- Yuba, MI D+12
- Suttons Bay, MI D+9
- Clam River, MI R+17
- Omena, MI D+8
- Torch River, MI R+16
- Lake Leelanau, MI Even
- Glen Haven, MI Even
- Eastport, MI R+14
Cities with Similar Populations
- Millhousen, IN R+63
- White Lake, NY R+15
- Red Lake, AZ D+47
- Altona, IL R+38
- New Houlka, MS R+15
- Gilboa, OH R+68
- East Salem, WV R+59
- Callaghan, VA R+65
- Manila, UT R+59
- Mapleton, OR R+18
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.