St. Marys leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 65% of adults in St. Marys typically vote, near the U.S. average of about 62%. Among adults in St. Marys, ~21% vote Democratic, ~44% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How St. Marys compares
Among cities within 25 miles, St. Marys leans more Republican than 40 of 50 neighbors.
St. Marys runs about 36 points more Republican than Wisconsin as a whole.
Why St. Marys 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 St. Marys, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In St. Marys, about 94% of residents are non-Hispanic white, about 21 points above the U.S. average of 72%; about 17% of adults hold a bachelor's degree, about 9 points below the Wisconsin average of 26%.
Population density and Republican lean
Places with low population density tend to lean Republican; St. Marys, WI sits below the national average on this measure.
Why turnout in St. Marys looks the way it does
Turnout in St. Marys 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
- Oil City, WI R+39
- Norwalk, WI R+38
- Ontario, WI R+26
- Cashton, WI R+30
- Melvina, WI R+38
- Rockton, WI R+23
- Wilton, WI R+39
- Leon, WI R+37
- Westby, WI R+19
- Valley, WI R+30
Cities with Similar Populations
- Menifee, AR R+25
- Melrose, MD R+38
- Revloc, PA R+53
- Uniontown, AR R+68
- DePeyster, NY R+45
- Jessenland, MN R+42
- Towns, GA R+52
- Flat Rock, OH R+55
- Woodland, UT R+38
- Osceola, WA R+21
Sources and methodology
Precinct-level voting records used to fit the model come from Wisconsin Elections Commission, 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.