Keweenaw County is a true toss-up. About 49% of voters here vote Democratic and 51% Republican.
About 85% of adults in Keweenaw County typically vote, above the U.S. average of about 62%. Among adults in Keweenaw County, ~42% vote Democratic, ~43% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Keweenaw County compares
Among counties within 50 miles, Keweenaw County sits roughly in the middle of the political spectrum, with 1 neighbors leaning further in the place's direction and 1 leaning the other way.
Politically, Keweenaw County sits close to the rest of Michigan.
Politics vary noticeably by city within Keweenaw County. The east side runs the most Democratic (D+21) and the south side runs the most Republican (R+12), a spread of about 33 points.
Why Keweenaw County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Keweenaw County. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Keweenaw County, MI sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Keweenaw County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Keweenaw County 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 75%, about 15 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 90% of households in Keweenaw County own their home, about 15 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 95% of adults in Keweenaw County have completed high school, above 94% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Houghton County, MI D+5
- Baraga County, MI R+14
- Ontonagon County, MI R+26
- Marquette County, MI Even
- Iron County, MI R+24
- Alger County, MI R+17
- Cook County, MN D+32
- Gogebic County, MI R+14
- Florence County, WI R+41
- Dickinson County, MI R+25
Counties with Similar Populations
- Judith Basin County, MT R+62
- Wheatland County, MT R+66
- Haines Borough, AK R+17
- Stanton County, KS R+48
- Jeff Davis County, TX R+51
- Gilliam County, OR R+48
- Clark County, KS R+73
- Worth County, MO R+64
- Faulk County, SD R+66
- Wrangell City and Borough, AK R+8
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Michigan Department of State, Elections, 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.