Ontonagon, MI

View of Ontonagon, MI
Image credit: Tim Kiser ( w:User:Malepheasant ) / CC BY-SA 2.5
Population
1,264
U.S. Census Population Estimates Program · 2025
Elevation
613 ft
Median Home Value
$105,200
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$538/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$50,164
U.S. Census American Community Survey 5-Year · 2024

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Ontonagon in context.

About Ontonagon

Ontonagon is a village at the mouth of the Ontonagon River on Lake Superior, in Michigan's western Upper Peninsula. It is the county seat and the only incorporated place in Ontonagon County, so a very small population carries a surprisingly large civic load. The water gives the town its shape: the river reaches the lake here, and the waterfront once supported copper-era activity and later industrial work. The Smurfit-Stone Container plant at the river mouth closed in 2010, leaving the community to carry its industrial history into a new chapter.

Ontonagon is also the westernmost incorporated community in the United States that uses Eastern Time, a fun map fact that feels plausible once you see how far west the Upper Peninsula runs. US 45 connects the village with Rockland, Bruce Crossing, and the inland forest country, while Lake Superior and the Ontonagon River set the outdoor frame with beaches, fishing, boating, and access toward the Porcupine Mountains. County offices, schools, local businesses, and the harbor keep the village functioning as the county's service center. It is a lake-and-river town first, with the courthouse and old industrial shoreline folded into the same view.

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