Mountrail County, North Dakota Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 16th-largest in North Dakota
The population of Mountrail County, North Dakota is 9,567 as of the 2023 American Community Survey, making it the 16th-largest county in North Dakota. The median household income is $81,292, the median home value is $222,200, and the median age is 35.1.
The population of Mountrail County has grown 22.9% since 2010 (7,708 → 9,474), a +1.48% annualized rate.
9,567
Population
+1.48%
Annual growth
5
People / sq mi
$81,292
Median Income
$222,200
Median Home Value
Mountrail County covers 1,825 sq mi of land at 5.2 people per square mile.
About Mountrail County, ND
Mountrail County is a county in North Dakota with a population of 9,567. It ranks #16 among counties in North Dakota by population. The median age is 35.1, younger than the national median. The population is 52.0% male and 48.0% female.
The median household income in Mountrail County is $81,292, above the US median of $74,580. 10.7% of residents live below the federal poverty level. Home values sit at a median of $222,200, with monthly rent averaging $864. The homeownership rate of 60.0% is lower than the national rate of 64.8%.
Educational attainment in Mountrail County reflects 22.4% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 4.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 19.9 minutes each way.
Mountrail County Population History (2010-2024)
The county of Mountrail County had a population of 7,708 in 2010 and 9,474 in 2024, a 22.9% growth over 14 years. The peak was 10,507 in 2019. Average annual growth rate: 1.57%.
9,474
Population (2024)
7,708
Population (2010)
10,507
Peak (2019)
1.57%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 7,708 |
| 2011 | 8,102 |
| 2012 | 8,739 |
| 2013 | 9,342 |
| 2014 | 9,755 |
| 2015 | 10,311 |
| 2016 | 10,239 |
| 2017 | 10,273 |
| 2018 | 10,217 |
| 2019 | 10,507 |
| 2020 | 9,803 |
| 2021 | 9,578 |
| 2022 | 9,255 |
| 2023 | 9,427 |
| 2024 | 9,474 |
Race & Ethnicity
| White | 59.8% |
| Black or African American | 2.0% |
| Asian | 1.2% |
| Hispanic or Latino (any race) | 31.8% |
| Two or More Races | 0.0% |
Age & Sex
35.1
Median Age
48.0%
Female
52.0%
Male
13.1%
Age 65+
Age Distribution
Children (under 15): 24.4% · Seniors (65+): 13.1%
Income & Poverty
| Median household income | $81,292+$5,343 vs state |
| Mean household income | $102,926 |
| Per-capita income | $41,281 |
| Poverty rate | 10.7%+4.5% vs state |
| Unemployment rate | 1.9% |
| Employment-to-population | 61.5% |
Top Industries by Employment
The largest employment sector in Mountrail County is professional & business services, accounting for 19.3% of workers.
How residents commute
0.0%
Drive alone
3.9%
Carpool
78.4%
Public transit
4.5%
Work from home
19.9 min
Avg commute
Housing
$222,200$-18,900 vs state
Median home value
$864
Median rent
60.0%
Homeownership rate
5,073
Total housing units
75.7%
Occupied
24.3%
Vacant
40.0%
Renter-occupied
Social & access
83.6%
With health insurance
93.0%
With broadband internet
38.3%
Foreign-born
5.7%
Veterans (18+)
13.9%
With a disability
88.5%
Speak language other than English at home
Education
88.6%
High School+
22.4%
Bachelor's+
Largest cities in North Dakota
Other counties in North Dakota
Part of North Dakota
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County rankings
Frequently Asked Questions
Mountrail County, North Dakota has a population of 9,567 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 16th-largest county in North Dakota. Population density is 5 people per square mile.
The population of Mountrail County has grown 22.9% since 2010 (7,708 → 9,474), a +1.48% annualized rate.
The median household income in Mountrail County, North Dakota is $81,292, with mean (average) household income of $102,926 and per-capita income of $41,281. 10.7% of residents live below the federal poverty level.
In Mountrail County, the largest racial and ethnic groups are White (59.8%), Hispanic or Latino (31.8%), Black or African American (2.0%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Mountrail County, North Dakota is 35.1 years. Residents are 48.0% female and 52.0% male.
The median home value in Mountrail County is $222,200 and median monthly rent is $864. 60.0% of occupied housing units are owner-occupied. The county has 5,073 total housing units, 24.3% of which are vacant.
The largest employment sector in Mountrail County, North Dakota is professional, scientific, and management services, employing 19.3% of workers. The unemployment rate is 1.9%.
Fargo is among the largest cities associated with Mountrail County, North Dakota, with a population of 129,064.
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Statewide data for North Dakota
Population, race, income, age, and trends across North Dakota
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.