| Slope County, North Dakota | |
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Slope County Courthouse in Amidon, North Dakota
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Location in the state of North Dakota |
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North Dakota's location in the U.S. |
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| Founded | 1915 |
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| Seat | Amidon |
| Largest city | Marmarth |
| Area - Total - Land - Water |
1,219 sq mi (3,157 km²) 1,218 sq mi (3,155 km²) 1 sq mi (3 km²), 0.10% |
| Population - (2010) - Density |
727 1/sq mi (0.24/km²) |
Slope County is a county located in the U.S. state of North Dakota. At the 2010 census, the population was 727,[1] making it the least populous county in North Dakota and the 19th least populous county in the United States. The county seat is Amidon,[2] the second least populous county seat in the country.
Slope County was formed in 1914 following a vote to create a new county out of the southern portion of Billings County. The name refers to the Missouri Slope, a geographical feature that is also a popular designation for western North Dakota, particularly the area west of the Missouri River. The county government was first organized on January 14, 1915; the county seat has always been Amidon.[3]
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According to the U.S. Census Bureau, the county has a total area of 1,219 square miles (3,160 km2), of which, 1,218 square miles (3,150 km2) of it is land and 1 square mile (2.6 km2) of it (0.10%) is water.
White Butte, the highest natural point in North Dakota at an elevation of 3506 ft (1062 m), is in Slope County.
As of the census[4] of 2000, there were 767 people, 313 households, and 222 families residing in the county. The population density was 0.63 people per square mile (0.14/km²). There were 451 housing units at an average density of 0.37 per square mile (0.24/km²). The racial makeup of the county was 99.74% White, 0.13% Native American, and 0.13% from two or more races. 0.13% of the population were Hispanic or Latino of any race. Slope County has the highest percentage white population of any U.S. county. 46.9% were of German, 15.2% Norwegian, 8.1% American, 7.4% English and 7.2% Swedish ancestry according to Census 2000.
| Historical populations | |||
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| Census | Pop. | %± | |
| 1920 | 4,940 |
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| 1930 | 4,150 | −16.0% | |
| 1940 | 2,932 | −29.3% | |
| 1950 | 2,315 | −21.0% | |
| 1960 | 1,893 | −18.2% | |
| 1970 | 1,484 | −21.6% | |
| 1980 | 1,157 | −22.0% | |
| 1990 | 907 | −21.6% | |
| 2000 | 767 | −15.4% | |
| 2010 | 727 | −5.2% | |
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There were 313 households out of which 30.0% had children under the age of 18 living with them, 64.5% were married couples living together, 3.8% had a female householder with no husband present, and 28.8% were non-families. 27.2% of all households were made up of individuals and 10.5% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.96.
In the county the population was spread out with 25.3% under the age of 18, 4.2% from 18 to 24, 25.0% from 25 to 44, 27.6% from 45 to 64, and 17.9% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 116.7 males. For every 100 females age 18 and over, there were 117.0 males.
The median income for a household in the county was $24,667, and the median income for a family was $26,058. Males had a median income of $20,000 versus $12,115 for females. The per capita income for the county was $14,513. About 15.40% of families and 16.90% of the population were below the poverty line, including 16.30% of those under age 18 and 8.00% of those age 65 or over.
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| Golden Valley County | Billings County | Stark County | ||
| Fallon County, Montana | Hettinger County | |||
| Slope County, North Dakota | ||||
| Bowman County | Adams County |
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