Oliver County, North Dakota


Oliver County is a county located in the U.S. state of North Dakota. As of the 2020 census, the population was 1,877, and was estimated to be 1,882 in 2024. The county seat and largest city is Center. Oliver County is included in the Bismarck Metropolitan Area.
WWW olivercountynd.org

History

The Dakota Territory legislature created the county on April 14, 1885, with territory partitioned from Mercer County. It was named for Harry S. Oliver of Lisbon, North Dakota, a Republican politician and member of the Dakota Territory House of Representatives at the time. The county government was organized on May 18, with Sanger (then known as "Bentley") as county seat. The seat was moved to Center in 1902.
Oliver County is included in the Bismarck, North Dakota Metropolitan statistical area.

Geography

The northeastern/eastern boundary of Oliver County is delineated by the Missouri River as it flows southeastward after leaving Lake Sakakawea. The county terrain consists of rolling hills, mostly devoted to agriculture. The terrain slopes to the east, with the highest point a hill near its southwestern corner, at ASL.
According to the United States Census Bureau, the county has a total area of, of which is land and is water. It is the 49th largest county and the fifth-smallest county in North Dakota by total area.
By sheer coincidence, the county seat, Center, named for being near the geographical center of the county, has also been calculated to be the geographic center of North America.

Major highways

Adjacent counties

Protected areas

Lakes

  • Mandan Lake
  • Nelson Lake

Demographics

As of the fourth quarter of 2024, the median home value in Oliver County was $229,923.
As of the 2023 American Community Survey, there are 727 estimated households in Oliver County with an average of 2.50 persons per household. The county has a median household income of $76,953. Approximately 10.8% of the county's population lives at or below the poverty line. Oliver County has an estimated 61.3% employment rate, with 20.5% of the population holding a bachelor's degree or higher and 94.6% holding a high school diploma.
The top five reported ancestries were English, Spanish, Indo-European, Asian and Pacific Islander, and Other.
The median age in the county was 46.1 years.
Oliver County, North Dakota – racial and ethnic composition
Race / ethnicity Pop. 1980Pop. 1990Pop. 2000Pop. 2010
White alone 2,452
2,338
2,005
1,782
1,755
Black or African American alone 2
0
1
3
3
Native American or Alaska Native alone 36
39
25
26
23
Asian alone 1
0
2
4
5
Pacific Islander alone ——0
0
3
Other race alone 0
0
0
0
1
Mixed race or multiracial ——19
12
59
Hispanic or Latino 4
4
13
19
28
Total2,495
2,381
2,065
1,846
1,877

2024 estimate

As of the 2024 estimate, there were 1,882 people and 727 households residing in the county. The population density was. There were 922 housing units at an average density of. The racial makeup of the county was 94.5% White , 0.5% African American, 3.1% Native American, 0.4% Asian, 0.0% Pacific Islander, _% from some other races and 1.5% from two or more races. Hispanic or Latino people of any race were 2.1% of the population.

2020 census

As of the 2020 census, there were 1,877 people, 760 households, and 537 families residing in the county. The population density was. There were 912 housing units at an average density of.
Of the residents, 24.7% were under the age of 18 and 21.6% were 65 years of age or older; the median age was 44.5 years. For every 100 females there were 110.7 males, and for every 100 females age 18 and over there were 114.9 males.
The racial makeup of the county was 93.6% White, 0.2% Black or African American, 1.3% American Indian and Alaska Native, 0.3% Asian, 0.7% from some other race, and 3.8% from two or more races. Hispanic or Latino residents of any race comprised 1.5% of the population.
Of the 760 households, 27.4% had children under the age of 18 living with them and 13.4% had a female householder with no spouse or partner present. About 24.7% of all households were made up of individuals and 11.0% had someone living alone who was 65 years of age or older.
Of the 912 housing units, 16.7% were vacant. Among occupied housing units, 85.4% were owner-occupied and 14.6% were renter-occupied. The homeowner vacancy rate was 2.2% and the rental vacancy rate was 16.5%.

2010 census

As of the 2010 census, there were 1,846 people, 756 households, and 554 families residing in the county. The population density was. There were 905 housing units at an average density of. The racial makeup of the county was 97.29% White, 0.16% [African American ancestry|American (U.S. census)|African American], 1.52% Native American, 0.22% Asian, 0.00% Pacific Islander, 0.16% from some other races and 0.65% from two or more races. Hispanic or Latino people of any race were 1.03% 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.
There were 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.

Population by decade


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Communities

City

Unincorporated communities

Source:

Politics

Oliver County voters are traditionally Republican. In only one national election since 1936 has the county selected the Democratic Party candidate.

Education

School districts include:
Center previously had a separate school district, but it merged with Stanton's in 2004.