Dunn County leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 71% of adults in Dunn County typically vote, above the U.S. average of about 62%. Among adults in Dunn County, ~30% vote Democratic, ~41% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Dunn County compares
Among counties within 50 miles, Dunn County leans more Republican than 1 of 10 neighbors.
Dunn County runs about 15 points more Republican than Wisconsin as a whole.
Politics vary noticeably by city within Dunn County. The south side runs the most Democratic (D+4) and the northwest side runs the most Republican (R+38), a spread of about 42 points.
Why Dunn County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Dunn County. The lean here lands roughly where demographic data alone would predict.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as Dunn County, WI does.
Why turnout in Dunn County looks the way it does
Areas with high high-school completion turn out at higher rates. About 95% of adults in Dunn County have completed high school, about 5 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Pepin County, WI R+30
- Eau Claire County, WI D+10
- Chippewa County, WI R+24
- Pierce County, WI R+19
- St. Croix County, WI R+20
- Barron County, WI R+28
- Buffalo County, WI R+32
- Polk County, WI R+33
- Wabasha County, MN R+30
- Goodhue County, MN R+22
Counties with Similar Populations
- Hopkins County, KY R+48
- Washington Parish, LA R+36
- Calaveras County, CA R+29
- Greene County, AR R+58
- Hillsdale County, MI R+43
- Thomas County, GA R+18
- Osage County, OK R+39
- Shelby County, IN R+47
- Perry County, PA R+52
- Chilton County, AL R+69
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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.