Iron River, MI Political Map | Democrat & Republican Areas in Iron River

By the BestNeighborhood data science team. Last updated May 2026.

Iron River leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.

 

About 98% of adults in Iron River typically vote, above the U.S. average of about 62%. Among adults in Iron River, ~38% vote Democratic, ~60% Republican, and ~2% don't vote. The map below shows estimated turnout by block group.

How Iron River compares

Among cities within 25 miles, Iron River is the least Republican-leaning.

Iron River runs about 20 points more Republican than Michigan as a whole.

Politics vary noticeably by neighborhood within Iron River. The northeast side is the most Republican-leaning (R+29) and the east side is the least Republican-leaning (R+12), a spread of about 17 points.

Why Iron River 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 Iron River, not a ranked or complete list of what matters most.

Iron River votes Republican even though it is densely developed (about 20%, modestly below the Michigan average of 31%). Here an older population outweighs the Democratic lean that density usually predicts.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Iron River, MI sits above the national average 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 Iron River looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Iron River 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 66%, about 6 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.

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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.