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About Ontonagon County
Ontonagon County is a county in the Upper Peninsula of the U.S. state of Michigan. As of the 2020 census, the population was 5,816, making it Michigan's third-least populous county. The county seat is Ontonagon. The county was set off in 1843, and organized in 1848. Its territory had been organized as part of Chippewa and Mackinac counties. With increasing population in the area, more counties were organized. After Ontonagon was organized, it was split to create Gogebic County. It is also the westernmost county in the United States that lies within the Eastern Time Zone.
Description adapted from Wikipedia, CC BY-SA 4.0.
At a glance
Ontonagon County at a glance
- County seat
- Ontonagon
- Population
- 5,816 (2020)
- Land area
- 3,741 sq mi
- Founded
- 1843
Communities
Largest communities in Ontonagon County
- Ontonagon Township2,253
- Ontonagon county seat1,285
- Stannard Township645
- Greenland Township628
- Carp Lake Township582
History of Ontonagon County
In 1843, Michigan's Upper Peninsula was divided into Mackinac, Chippewa, Marquette, Schoolcraft, Delta, and Ontonagon Counties. In 1845, a portion of Ontonagon County was partitioned to be part of Houghton County. In 1846, the village of Ontonagon was named as the county seat of Ontonagon County. Ontonagon County is part of Copper Country, a region of the Upper Peninsula with prevalent copper mining from 1845 until the late 1960s. Prehistoric mining was conducted by local Native American populations. The first attempts by Europeans to mine copper in the area came in 1771 in the Ontonagon River. The Ontonagan Copper Boulder was removed from the west branch of the Ontonagon River and transported in 1842 to Detroit where it was weighed at 3708 pounds, thence to the Smithsonian Institution. The last copper mine in Copper Country was the White Pine mine, which closed in 1995.
Adapted from Wikipedia, CC BY-SA 4.0.
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Part of Michigan Voter Check
This is the Ontonagon County page of Michigan Voter Check, a project of True the Vote, pointing Michigan voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Ontonagon County or Michigan Secretary of State publishes, they are right and this page is not.