Summit City leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 81% of adults in Summit City typically vote, above the U.S. average of about 62%. Among adults in Summit City, ~23% vote Democratic, ~58% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How Summit City compares
Among cities within 25 miles, Summit City leans more Republican than 29 of 40 neighbors.
Summit City runs about 41 points more Republican than Michigan as a whole.
Politics vary noticeably by neighborhood within Summit City. The southeast side is the most Republican-leaning (R+52) and the northeast side is the least Republican-leaning (R+36), a spread of about 16 points.
Why Summit City 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 Summit City, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 81% of households in Summit City are family households, about 14 points above the U.S. average of 67%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Summit City, MI sits above the national average 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 Summit City looks the way it does
Turnout in Summit City sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Kingsley, MI R+39
- Mayfield, MI R+26
- Buckley, MI R+45
- Fife Lake, MI R+40
- Monroe Center, MI R+32
- Manton, MI R+49
- Grawn, MI R+20
- Karlin, MI R+36
- Meauwataka, MI R+44
- Sherman, MI R+46
Cities with Similar Populations
- Bennington, KS R+64
- Darwin, MN R+49
- Barneveld, NY R+31
- Tiskilwa, IL R+42
- Fredericksburg, IN R+59
- Big Island, VA R+54
- Darlington, LA D+33
- Peggs, OK R+52
- Hobbsville, NC R+34
- Mountain Home, TX R+69
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.