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Slope County, North Dakota facts for kids

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Slope County
Former Slope County Courthouse in Amidon
Former Slope County Courthouse in Amidon
Map of North Dakota highlighting Slope County
Location within the U.S. state of North Dakota
Map of the United States highlighting North Dakota
North Dakota's location within the U.S.
Country  United States
State  North Dakota
Founded November 3, 1914
January 14, 1915 (organized)
Seat Amidon
Largest city Marmarth
Area
 • Total 1,219 sq mi (3,160 km2)
 • Land 1,215 sq mi (3,150 km2)
 • Water 4.2 sq mi (11 km2)  0.3%
Population
 (2020)
 • Total 706
 • Estimate 
(2022)
672 Decrease
 • Density 0.5792/sq mi (0.22362/km2)
Time zone UTC−7 (Mountain)
 • Summer (DST) UTC−6 (MDT)
Congressional district At-large

Slope County is a county in the state of North Dakota. In 2020, 706 people lived there. This makes it the county with the fewest people in North Dakota. It is also the 18th-least populated county in the whole United States. The main town where the county government is located is Amidon.

History of Slope County

Slope County was created on November 3, 1914. People voted to separate it from a larger county called Billings County. This was the last time Billings County was made smaller. Before this, Bowman County was formed from it in 1883. Then, Golden Valley County was split off in 1910.

After the vote, Slope County was officially organized on January 14, 1915. The county's name comes from the "Missouri Slope." This is a special geographical area in western North Dakota. It refers to the land west of the Missouri River.

Geography of Slope County

White butte (1)
White Butte in Slope County

Slope County is in the lower western part of North Dakota. Its western border touches the state of Montana. The Little Missouri River flows into the county from the south. It then goes north, briefly into Golden Valley County, and then turns north into Billings County. Cedar Creek drains the southeastern part, flowing south into Bowman County.

The land in Slope County has many rough hills and valleys. It also has lower hills, and some areas are used for farming. The land generally slopes down towards the east and south. The highest point, not counting special peaks like White Butte, is in the northwestern corner. It is about 3,104 feet (946 meters) above sea level.

The county covers about 1,219 square miles (3,157 square kilometers). Most of this, 1,215 square miles (3,147 square kilometers), is land. Only about 4.2 square miles (11 square kilometers) is water.

White Butte is in the southeast of Slope County. It is the highest natural point in North Dakota. Its elevation is about 3,506 feet (1,069 meters).

Main Roads in Slope County

  • US 12.svg U.S. Highway 12
  • US 85.svg U.S. Highway 85
  • ND-21 (2015).svg North Dakota Highway 21
  • ND-67 (2015).svg North Dakota Highway 67

Protected Natural Areas

These are special places where nature is protected:

  • Little Missouri National Grassland (part of it)
  • Stewart Lake National Wildlife Refuge
  • White Lake National Wildlife Refuge

Counties Nearby

Slope County shares borders with these counties:

Lakes in Slope County

  • Cedar Lake
  • White Lake

Population and People

The number of people living in Slope County has changed a lot over the years. In 1920, there were 4,940 people. By 2020, the population had dropped to 706. This is the biggest population drop from its highest point for any county in the United States. In 2022, the estimated population was 672.

What the 2010 Census Showed

In 2010, there were 727 people living in Slope County. There were 326 households, which are groups of people living together. About 22.4% of these households had children under 18. Most households (60.7%) were married couples.

The average age of people in the county was 49.2 years old. Most people (97.5%) were white. About 2.2% were American Indian. A small number (1.7%) were of Hispanic or Latino background.

Many people in Slope County have German (53.9%) or Norwegian (30.7%) family backgrounds. Other backgrounds include English, Swedish, Polish, and American.

The average income for a household was $43,625 per year. For families, it was $55,833. About 10.5% of all people in the county lived below the poverty line. This means they had a very low income.

Towns and Communities

Cities

  • Amidon (This is the county seat, where the main government offices are.)
  • Marmarth

Small Unincorporated Communities

These are small places that are not officially cities or towns:

  • De Sart
  • Mound
  • Pierce

Education

Children in Slope County go to schools in these districts:

  • Bowman County Public School District 1
  • New England Public School District 9
  • Scranton Public School District 33
  • Marmarth Public School District 12 (This district only has elementary schools.)

Some school districts have closed or merged:

  • Central Elementary Public School District 32 (Amidon Elementary School) closed in 2020. Its students now go to Bowman County School District No. 1 or New England School District No. 9.
  • Sheets Public School District 14 (Cottage School) also closed.

The Amidon and Cottage schools were the last two schools left in the county before they closed.

Images for kids

See also

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

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