Thiensville leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 92% of adults in Thiensville typically vote, above the U.S. average of about 62%. Among adults in Thiensville, ~49% vote Democratic, ~43% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.
How Thiensville compares
Among cities within 25 miles, Thiensville leans more Democratic than 64 of 78 neighbors.
Thiensville runs about 7 points more Democratic than Wisconsin as a whole.
Why Thiensville 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 Thiensville, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 60% of adults in Thiensville hold a bachelor's degree, about 31 points above the U.S. average of 28%. Dense areas vote Democratic, and Thiensville sits in the top fifth on density (about 90%, above 96% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Thiensville, WI sits in the top tenth nationally on this measure.
Why turnout in Thiensville looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Thiensville 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 74%, about 14 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Thiensville have completed high school, above 93% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Mequon, WI D+4
- Brown Deer, WI D+45
- Cedarburg, WI R+5
- River Hills, WI D+19
- Bayside, WI D+35
- Lakefield, WI R+13
- Grafton, WI R+7
- Kirchhayn, WI R+45
- Fox Point, WI D+39
- Germantown, WI R+13
Cities with Similar Populations
- Gibsonburg, OH R+40
- Leonard, TX R+65
- Dewey-Humboldt, AZ R+47
- La Salle, MI R+40
- Clarksville, OH R+63
- Plantersville, TX R+65
- Altamont, IL R+60
- West Ocean City, MD R+20
- Sloan, NY Even
- Stockton, NJ Even
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.