Jackson County leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 68% of adults in Jackson County typically vote, above the U.S. average of about 62%. Among adults in Jackson County, ~27% vote Democratic, ~41% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Jackson County compares
Among counties within 50 miles, Jackson County leans more Republican than 5 of 10 neighbors.
Jackson County runs about 20 points more Republican than Wisconsin as a whole.
Politics vary noticeably by city within Jackson County. The east side runs the most Democratic (D+21) and the northwest side runs the most Republican (R+39), a spread of about 60 points.
Why Jackson County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Jackson County, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 16% of adults in Jackson County hold a bachelor's degree, about 11 points below the Wisconsin average of 26%.
Population density and Republican lean
Places with low population density tend to lean Republican; Jackson County, WI sits below the national average on this measure.
Why turnout in Jackson County looks the way it does
Turnout in Jackson County 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 Counties
- Trempealeau County, WI R+26
- Monroe County, WI R+28
- La Crosse County, WI D+8
- Clark County, WI R+43
- Buffalo County, WI R+32
- Eau Claire County, WI D+10
- Winona County, MN R+8
- Wood County, WI R+22
- Houston County, MN R+21
- Vernon County, WI R+19
Counties with Similar Populations
- Logan County, AR R+63
- Union Parish, LA R+49
- Clinton County, MO R+48
- Madison County, NC R+34
- Gray County, TX R+59
- Fillmore County, MN R+32
- Nodaway County, MO R+38
- Llano County, TX R+56
- Assumption Parish, LA R+30
- Morgan County, TN R+70
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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.