Eau Claire leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 84% of adults in Eau Claire typically vote, above the U.S. average of about 62%. Among adults in Eau Claire, ~49% vote Democratic, ~35% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How Eau Claire compares
Among cities within 25 miles, Eau Claire is the most Democratic-leaning.
Eau Claire runs about 16 points more Democratic than Wisconsin as a whole. Wisconsin is roughly evenly split, and Eau Claire sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within Eau Claire. The south side is the most Democratic-leaning (D+19) and the northeast side is the least Democratic-leaning (Even), a spread of about 18 points.
Why Eau Claire 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 Eau Claire, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 71% of residents in Eau Claire live in densely developed areas, about 35 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Eau Claire sits in the top quarter (about 38%, above 85% of cities). A high never-married share predicts Democratic voting, and about 39% of adults in Eau Claire have never been married, above 93% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Eau Claire, WI sits in the top quarter nationally 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 Eau Claire looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Eau Claire 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 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Eau Claire have completed high school, above 87% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Altoona, WI D+14
- Lake Hallie, WI R+16
- Hallie, WI R+19
- Fall Creek, WI R+23
- Elk Mound, WI R+29
- Lake Wissota, WI R+20
- Chippewa Falls, WI R+14
- Falls City, WI R+30
- Eleva, WI R+23
- Tilden, WI R+31
Cities with Similar Populations
- Rancho Cordova, CA D+10
- Westminster, CO D+19
- Owensboro, KY R+26
- Centennial, CO D+16
- Johns Creek, GA D+9
- Somerville, MA D+69
- Port Charlotte, FL R+32
- Springdale, AR R+7
- Madera, CA Even
- Littleton, CO D+17
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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.