County · North Dakota
Oliver County, North Dakota
Oliver County, North Dakota. Oliver County had 1,898 residents in 2025 by the Census Bureau's estimate, up 1.4% since 2020, slower than North Dakota (+2.6%). It holds 1 place (1 city, village or borough) and 1 census tract. GEOID 38065.
Oliver County is one of the 3 counties of the Bismarck, ND metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
1,898
Census Bureau estimate (no margin published)
2020 Census count: 1,877 · ACS 2020-2024: 1,839 ±107
Median household income
$77,240
±$8,173 (90% margin)
North Dakota: $76,657
Median home value
$215,700
±$30,870 (90% margin)
North Dakota: $249,900
Median gross rent
$756
±$70 (90% margin)
North Dakota: $954
How many people live in Oliver County, and is it growing?
The 2020 Census counted 1,877 residents in Oliver County. The Census Bureau estimates 1,898 for July 1, 2025, up 1.4% since 2020, slower than North Dakota (+2.6%). The 2020-2024 American Community Survey puts the population at 1,839 over 722 square miles of land.
| Measure | Oliver County | North Dakota | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,839±107 | 784,841 | no clear change |
| Households | 725±53 | 331,063 | no clear change |
| Average household size | 2.53±0.13 | 2.28 | no clear change |
| Housing units | 893±46 | 377,281 | −99 |
Oliver County's population since 2000
From 2,065 in 2000 to 1,898 in 2025: down 8.1%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Oliver County?
Oliver County holds 1 place: 1 city, village or borough (an incorporated place). The largest is Center with 583 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Center | 588 | $77,083 |
|---|
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Oliver County?
The median resident of Oliver County is 46.1 years old; 25.9% are under 18 and 27.2% are 65 or older. The largest group is non-Hispanic white residents at 99.0%, then Hispanic or Latino residents (of any race) at 1.0%.
| Measure | Oliver County | North Dakota | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.1±2.8 | 35.9 | no clear change |
| Under 18 years | 25.9%±1.7 pts | 23.5% | – |
| 65 years and over | 27.2%±2.4 pts | 16.5% | – |
| Hispanic or Latino (any race) | 1.0%±1.0 pts | 4.7% | – |
| White alone, not Hispanic | 99.0%±1.1 pts | 81.7% | +8.8 pts |
| Black or African American alone, not Hispanic | 0.0%±1.3 pts | 3.3% | – |
| Asian alone, not Hispanic | 0.0%±1.3 pts | 1.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.3 pts | 4.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.3 pts | 0.1% | – |
| Two or more races, not Hispanic | 0.1%±0.1 pts | 4.0% | – |
| Some other race alone, not Hispanic | 0.0%±1.3 pts | 0.3% | – |
| Born outside the United States | 0.2%±0.3 pts | 4.7% | – |
| Speak a language other than English at home (age 5+) | 1.4%±0.7 pts | 6.7% | – |
| Civilian veterans (age 18+) | 7.6%±2.1 pts | 7.1% | – |
| With a disability | 9.5%±2.5 pts | 12.0% | – |
| No health insurance coverage | 4.7%±3.5 pts | 6.5% | – |
| High school graduate or higher (age 25+) | 94.7%±1.9 pts | 94.0% | – |
| Bachelor's degree or higher (age 25+) | 23.0%±4.5 pts | 32.7% | no clear change |
| Graduate or professional degree (age 25+) | 4.9%±1.9 pts | 9.7% | – |
| Moved from another state in the past year | 0.0%±1.4 pts | 4.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Oliver County earn?
Half of Oliver County's 725 households earn less than $77,240 a year (±$8,173), against $76,657 in North Dakota. In 2015-2019 the median was $97,137 in 2024 dollars, so it fell by $19,897 after inflation. 5.2% of residents live below the poverty line.
| Measure | Oliver County | North Dakota | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $77,240±$8,173 | $76,657 | −$19,897 |
| Mean household income | $106,672±$9,607 | $101,793 | – |
| Per capita income | $42,289±$3,781 | $43,389 | no clear change |
| People below the poverty line | 5.2%±1.9 pts | 10.8% | no clear change |
| Children under 18 below the poverty line | 2.5%±3.1 pts | 11.1% | – |
| Households receiving SNAP | 1.2%±1.0 pts | 6.6% | – |
| Households with a broadband subscription | 89.7%±4.1 pts | 88.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Oliver County?
Owners occupy 95.2% of Oliver County's occupied homes and renters 4.8%. The median owner-occupied home is valued at $215,700 by its owner (±$30,870). The median renter pays $756 a month including utilities.
| Measure | Oliver County | North Dakota | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $215,700±$30,870 | $249,900 | no clear change |
| Median gross rent | $756±$70 | $954 | no clear change |
| Renters paying 35% or more of income on rent | 0.0%±78.4 pts | 31.1% | – |
| Median monthly owner costs, with a mortgage | $1,768±$178 | $1,762 | – |
| Owner-occupied homes | 95.2%±3.1 pts | 62.9% | +6.6 pts |
| Housing units | 893±46 | 377,281 | −99 |
| Homeowner vacancy rate | 0.0%±3.5 pts | 1.2% | – |
| Rental vacancy rate | 16.7%±24.8 pts | 8.3% | – |
| Single-family detached homes | 83.1%±4.6 pts | 56.7% | – |
| Mobile homes | 13.5%±4.0 pts | 6.6% | – |
| Built 2020 or later | 1.1%±1.2 pts | 1.8% | – |
| Built 1939 or earlier | 11.1%±3.7 pts | 11.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Oliver County building?
Builders took permits for 8 new housing units across Oliver County in 2025 (8 single-family), 4.2 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Oliver County get to work?
79.5% of Oliver County's workers drive alone and 9.0% work from home. The average trip to work takes 25.9 minutes.
| Measure | Oliver County | North Dakota | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 57.1%±4.6 pts | 68.6% | – |
| Unemployment rate | 1.0%±1.0 pts | 2.8% | – |
| Drove alone to work | 79.5%±4.9 pts | 77.9% | – |
| Carpooled | 8.6%±3.0 pts | 8.8% | – |
| Public transportation | 0.0%±3.1 pts | 0.3% | – |
| Walked | 0.9%±1.6 pts | 3.2% | – |
| Worked from home | 9.0%±4.1 pts | 8.1% | no clear change |
| Mean travel time to work | 25.9 min±3.1 | 17.9 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Oliver County's census tracts?
Oliver County is a single census tract.
| Tract 961238065961200 | 1,839±107 | $77,240 |
|---|
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Oliver County compare with North Dakota's other counties?
| Measure | Rank |
|---|---|
| Population | 47th of 53 |
| Growth 2020-2025 | 12th of 53 |
| Residents per square mile | 35th of 53 |
| Median household income | 21st of 53 |
| Median home value | 13th of 53 |
| Median gross rent | 29th of 53 |
| Poverty rate | 52nd of 53 |
| Bachelor's degree or higher | 34th of 53 |
| Median age | 19th of 53 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Oliver County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.