Mandan Flag

Mandan

County:
Morton County
County Seat:
Yes
Area (mi²):
13.517
State:
North Dakota

Mandan is a city located in Morton County, North Dakota. Mandan has a 2026 population of 25,070. It is also the county seat of Morton County. Mandan is currently growing at a rate of 0.57% annually and its population has increased by 3.5% since the most recent census, which recorded a population of 24,223 in 2020.

The median household income in Mandan is $71,780 with a poverty rate of 9.83%. The median age in Mandan is 36.1 years: 35.7 years for males, and 37.6 years for females. For every 100 females there are 103.9 males.

25.1K
Total Population
1,855
Density (mi²)
141 0.57%
Growth

Mandan Population

Mandan Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202625,0701410.57%
202524,9291410.57%
202424,788730.3%
202324,7152040.83%
202224,5111030.42%
202124,4081850.76%
202024,223300.12%
201922,6701830.81%
201822,4871310.59%
201722,3562231.01%
201622,1333911.8%
201521,7425202.45%
201421,2229284.57%
201320,2947904.05%
201219,5043832%
201119,1211730.91%
201018,9486173.37%
200016,7181,54110.15%
199015,177-336-2.17%
198015,5134,42039.84%
197011,0935685.4%
196010,5253,22744.22%
19507,2986139.17%
19406,6851,64832.72%
19305,03770116.17%
19204,33646311.95%
19103,8732,573197.92%
19001,30000%

Median Age

Overall: 36.1 years
Female: 37.6 years
Male: 35.7 years

Mandan Adults

There are 19,171 adults, (4,015 of whom are seniors) in Mandan.

Sex Ratio

Female: 12,028 (49%)
Male: 12,494 (51%)

Demographics

The racial composition of Mandan includes 84.29% White, 5.14% Native American, 3.62% other race, and smaller percentages for Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White20,67084.29%
Native American1,2615.14%
Two or more races1,0854.42%
Other race8883.62%
Black or African American5462.23%
Asian400.16%
Native Hawaiian or Pacific Islander320.13%
Race
Population ↓
Percentage (of total)
Other race7393.01%
Two or more races4891.99%
White1270.52%
Native American350.14%
Race
Population ↓
Percentage (of total)
White20,54383.77%
Native American1,2265%
Two or more races5962.43%
Black or African American5462.23%
Other race1490.61%
Asian400.16%
Native Hawaiian or Pacific Islander320.13%

Mandan Marital Status

Economics and Income Statistics

Mandan 's average per capita income is $50,011. Household income levels show a median of $71,780. The poverty rate stands at 9.83%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$115,000-
Families$108,098$144,945
Households$71,780$108,262
Non Families$43,516$53,113

$50,011

Average Income

$71,780

Median Household Income

9.83%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)