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Ontonagon County, Michigan facts for kids

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Ontonagon County
Old Ontonagon County Courthouse in Ontonagon
Map of Michigan highlighting Ontonagon County
Location within the U.S. state of Michigan
Map of the United States highlighting Michigan
Michigan's location within the U.S.
Country  United States
State  Michigan
Founded March 9, 1843
1848 organized
Named for Ontonagon River
Seat Ontonagon
Largest village Ontonagon
Area
 • Total 3,741 sq mi (9,690 km2)
 • Land 1,311 sq mi (3,400 km2)
 • Water 2,430 sq mi (6,300 km2)  65%%
Population
 (2020)
 • Total 5,816
 • Density 5.2/sq mi (2.0/km2)
Time zone UTC−5 (Eastern)
 • Summer (DST) UTC−4 (EDT)
Congressional district 1st
Website http://ontonagoncounty.org/

Ontonagon County is a county in the Upper Peninsula of Michigan. In 2020, about 5,816 people lived here. This makes it Michigan's third smallest county by population. The main town, called the county seat, is Ontonagon.

The county was first created in 1843. It was officially organized in 1848. Before that, its land was part of Chippewa and Mackinac counties. As more people moved in, new counties were formed. Later, part of Ontonagon County was used to create Gogebic County. Ontonagon County is also the westernmost county in the United States that is entirely in the Eastern Time Zone.

Lake of the Clouds, Michigan
Lake of the Clouds in Porcupine Mountains Wilderness State Park

History of Ontonagon County

In 1843, Michigan's Upper Peninsula was divided into several counties. These included Mackinac, Chippewa, Marquette, Schoolcraft, Delta, and Ontonagon Counties.

In 1845, a piece of Ontonagon County became part of Houghton County. The village of Ontonagon was chosen as the county seat in 1846.

Ontonagon County is part of a region called Copper Country. This area was famous for copper mining from 1845 until the late 1960s. Long before Europeans arrived, local Native American groups mined copper here. Europeans first tried to mine copper in the Ontonagon River area in 1771. A large copper rock, known as the Ontonagon Copper Boulder, was taken from the river in 1842. It weighed 3,708 pounds and is now at the Smithsonian Institution. The last copper mine in Copper Country, the White Pine mine, closed in 1995.

What Does Ontonagon Mean?

The county is named after the Ontonagon River. The name is thought to come from an Ojibwe language word. Noojitoon ziibi means "hunting river." A French map from 1670 showed the river as Nantounagon. Another idea is that it comes from the Ojibwa word onagon, which means "dish" or "bowl."

Geography of Ontonagon County

The US Census Bureau says the county covers a total area of 3,741 square miles. About 1,311 square miles are land, and 2,430 square miles (65%) are water. This makes it the third-largest county in Michigan by total area.

Ontonagon County is in the western part of the Upper Peninsula. It sits along the shore of Lake Superior. It is the westernmost county in the United States that is completely within the Eastern Time Zone.

Important Geographic Features

Neighboring Counties

By land

By water

Protected Natural Areas

Transportation in Ontonagon County

Major Highways

  • US 45 – This highway runs north and south through the eastern-central part of the county. It enters from Watersmeet in the south. It passes through Paulding, Bruce Crossing, and Rockland, ending in Ontonagon.
  • M-26 – This highway enters the county from the east. It runs southwest, going through Mass City and Lake Mine. It meets M-38 east of Rockland.
  • M-28 – This highway runs east and west through the southern part of the county. It then continues west into Gogebic County.
  • M-38 – This highway enters the county from the east, near Mass City. It runs west to Lake Mine, then northwest to Ontonagon.
  • M-64 – This highway runs north and south through the middle of the county. It enters from the south, on the west side of Lake Gogebic. It runs north to the Lake Superior shoreline. Then it goes northeast along the shoreline to Ontonagon.

Airport

  • The Ontonagon County Airport (KOGM) serves the county and nearby towns.

Population and People

Historical population
Census Pop.
1850 389
1860 4,568 1,074.3%
1870 2,845 −37.7%
1880 2,565 −9.8%
1890 3,756 46.4%
1900 6,197 65.0%
1910 8,650 39.6%
1920 12,428 43.7%
1930 11,114 −10.6%
1940 11,359 2.2%
1950 10,282 −9.5%
1960 10,584 2.9%
1970 10,548 −0.3%
1980 9,861 −6.5%
1990 8,854 −10.2%
2000 7,818 −11.7%
2010 6,780 −13.3%
2020 5,816 −14.2%
2023 (est.) 5,906 −12.9%
US Decennial Census
1790-1960 1900-1990
1990-2000 2010-2018

In 2010, the 2010 United States census showed Ontonagon County had 6,780 people. There were 3,258 households and 1,954 families. The population density was about 6 people per square mile. There were 5,672 housing units.

In 2010, most people (97.3%) were White. About 1.1% were Native American. A small number were Asian (0.2%), Black (0.1%), or from other races. About 1.3% were of two or more races. About 0.9% were Hispanic or Latino. By 2020, the population had gone down to 5,816 people.

In 2010, about 15.8% of households had children under 18. About 50.3% were married couples. About 6.0% were female householders without a husband. And 40.0% were not families. Many households (34.8%) were made up of single people. About 17.0% had someone living alone who was 65 or older. The average household had 2.06 people, and the average family had 2.61 people.

The population's age breakdown in 2010 was:

  • 15.8% under 18
  • 4.1% from 18 to 24
  • 16.7% from 25 to 44
  • 37.0% from 45 to 64
  • 26.3% 65 or older

The average age was 52.7 years. The population was 51.6% male and 48.4% female.

In 2010, the average income for a household was $34,786. For a family, it was $46,845. The income per person was $22,195. About 9.0% of families and 14.3% of the population lived below the poverty line. This included 22.2% of those under 18 and 6.7% of those 65 or older. By 2021, the average household income had grown to $44,605.

Towns and Communities

Ontonagon County, MI census map
U.S. Census map showing towns and areas in Ontonagon County

Village

  • Ontonagon (This is the county seat, the main town)

Townships

Census-Designated Places

These are areas the census bureau defines for statistics.

Other Communities

These are smaller, unincorporated places.

Ghost Town

Indian Reservation

See also

Kids robot.svg In Spanish: Condado de Ontonagon para niños

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