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Oliver County, North Dakota facts for kids

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Oliver County
Missouri River at Cross Ranch State Park.
Map of North Dakota highlighting Oliver 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.
Coordinates: Lua error in Module:Coordinates at line 610: attempt to index field 'wikibase' (a nil value).
Country  United States
State  North Dakota
Founded April 14, 1885 (created)
May 18, 1885 (organized)
Named for Harry S. Oliver
Seat Center
Largest city Center
Area
 • Total 731 sq mi (1,890 km2)
 • Land 723 sq mi (1,870 km2)
 • Water 8.7 sq mi (23 km2)  1.2%
Population
 (2020)
 • Total 1,877
 • Density 2.5677/sq mi (0.9914/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district At-large

Oliver County is a county located in the U.S. state of North Dakota. As of the 2020 census, the population was 1,877. Its county seat and only city is Center.

Geography

According to the U.S. Census Bureau, the county has a total area of 731 square miles (1,890 km2), of which 723 square miles (1,870 km2) is land and 8.7 square miles (23 km2) (1.2%) is water. It is the fifth-smallest county in North Dakota by area.

Major highways

  • North Dakota 25.svg North Dakota Route 25
  • North Dakota 31.svg North Dakota Route 31
  • North Dakota 48.svg North Dakota Route 48
  • North Dakota 1806.svg North Dakota Route 1806
  • North Dakota 200.svg North Dakota Route 200A

Adjacent counties

Demographics

Historical population
Census Pop.
1890 464
1900 990 113.4%
1910 3,577 261.3%
1920 4,425 23.7%
1930 4,262 −3.7%
1940 3,859 −9.5%
1950 3,091 −19.9%
1960 2,610 −15.6%
1970 2,322 −11.0%
1980 2,495 7.5%
1990 2,381 −4.6%
2000 2,065 −13.3%
2010 1,846 −10.6%
2020 1,877 1.7%
US Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020

2010 census

As of the 2010 United States Census, there were 1,846 people, 756 households, and 554 families in the county. The population density was 2.55/sqmi (0.99/km2). There were 905 housing units at an average density of 1.25/sqmi (0.48/km2). The racial makeup of the county was 97.3% white, 1.5% American Indian, 0.2% black or African American, 0.2% Asian, 0.2% from other races, and 0.7% from two or more races. Those of Hispanic or Latino origin made up 1.0% of the population. In terms of ancestry, 66.8% were German, 19.3% were Norwegian, 7.6% were Russian, 6.3% were English, and 4.4% were American.

Of the 756 households, 25.0% had children under the age of 18 living with them, 65.5% were married couples living together, 4.8% had a female householder with no husband present, 26.7% were non-families, and 22.6% of all households were made up of individuals. The average household size was 2.44 and the average family size was 2.84. The median age was 47.6 years.

The median income for a household in the county was $62,308 and the median income for a family was $75,069. Males had a median income of $60,592 versus $28,409 for females. The per capita income for the county was $29,348. About 6.5% of families and 9.7% of the population were below the poverty line, including 13.0% of those under age 18 and 19.6% of those age 65 or over.

Communities

City

Unincorporated communities

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