Mandan, ND

City in Morton County, ND, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

24,522

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

36.1

years ∙ half population younger than 36.1, half older

Diversity Index

29.1%

chance two random people differ in race and ethnicity

Nativity

1.3%

foreign-born population

98.7%Native

1.3% Foreign-born

Geographic Context

Location, size, and surroundings

About

Mandan is a city within Morton County, North Dakota, United States.

Location

City in Morton County, ND, US

Co-ordinates

DEC46.829484° N, 100.887060° W

DMS46° 49′ 46.14″ N, 100° 53′ 13.42″ W

Population Density & area

1,816/sq mi (700.6/km²)

Total Area

13.6 sq mi (35.4 km²)

Land Area

13.5 sq mi (35 km²) · 98.9%

Water Area

0.1 sq mi (0.4 km²) · 1.1%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

51% male

Male 51%

Female 49%

males per 100 females

Mandan 103.9

Morton County 103.6

North Dakota 105.1

Nativity

1.3%

foreign-born population

98.7%Native

1.3% Foreign-born

% Foreign-born

Mandan 1.3%

Morton County 1.1%

North Dakota 4.7%

Age Distribution

How the population is spread across age groups

Median Age

36.1

years ∙ half population younger than 36.1, half older

Mandan

36.1

Morton County

37.6

North Dakota

35.9

Dependency ratio

61.8

dependents per 100 working-age adults

Mandan 61.8

Morton County 67.2

North Dakota 66.8

AGE DISTRIBUTION

Distribution of age group

Median age

	Mandan	Morton County	North Dakota
Age Group
Children (Under 18)	21.8%	22.9%	23.5%
Working age (18-64)	61.8%	59.8%	60%
Senior (65+)	16.4%	17.3%	16.5%
Dependency ratio
Total dependency ratio	61.8	67.2	66.8
Child dependency ratio	35.3	38.2	39.2
Old-age dependency ratio	26.5	28.9	27.6

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

83.8%

Black

2.2%

Asian

0.2%

Hispanic

5.7%

Other

8.1%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

29.1%

chance two random people differ in race and ethnicity

Mandan 29.1%

Morton County 24.4%

North Dakota 32.6%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Mandan population

	Mandan	Morton County	North Dakota
Hispanic or Latino	5.7%	4.4%	4.7%
Mexican	0.5%	0.7%	2.8%
Puerto Rican	4.1%	3%	0.5%
Cuban	0%	0%	0.1%
Other Hispanic / Latino	1%	0.7%	1.2%
Not Hispanic or Latino	94.3%	95.6%	95.3%
One race	91.9%	93%	91.3%
White	83.8%	86.7%	81.7%
Black or African American	2.2%	1.6%	3.3%
American Indian and Alaska Native	5%	4%	4.2%
Asian	0.2%	0.1%	1.6%
Native Hawaiian and Other Pacific Islander	0.1%	0.1%	0.1%
Some Other Race	0.6%	0.5%	0.3%
Two or more races (Multiracial)	2.4%	2.6%	4%

Household & Families Composition

Household size, type, and family structure

Household structure

58.7% family

Family 58.7%

Non family 41.3%

% family households

Mandan 58.7%

Morton County 62.6%

North Dakota 57.3%

Average household size

2.3

persons per household

Mandan

2.3

Morton County

2.37

North Dakota

2.28

Household & Family COMPOSITION

Households

Percentage of Mandan population

	Mandan	Morton County	North Dakota
Total households	10,465	13,946	331,063
Average houshold size	2.3	2.37	2.28
Family households	6,143	8,727	189,842
Average family size	2.92	2.97	3
Married couple family	4,832	7,145	151,685
Other families	1,311	1,582	38,157
Male householder	516	672	13,926
Female householder	795	910	24,231
Non-family households	4,322	5,219	141,221
One-person households	3,444	4,237	114,955
Male householder	1,849	2,252	61,956
Senior (65+) living alone	464	613	15,355
Female householder	1,595	1,985	52,999
Senior (65+) living alone	704	1,011	25,603
Other living arrangements	878	982	26,266

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

11,491

housing units

Mandan 11,491

Morton County 15,465

North Dakota 377,281

Occupancy status

91.1% occupied

Occupied 91.1%

Vacant 8.9%

vacancy rate

Mandan 8.9%

Morton County 9.8%

North Dakota 12.3%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

60.7%

Single family houses

60.7%

Apartments in multi-unit structures

25.4%

Mobile homes

14%

Boat, RV, van, etc

Median Year Built

1981

Half of houses were built before 1981, and half after.

Historic ∙ 1939 or earlier

8.8%

Postwar & mid-century ∙ 1940 - 1969

16.2%

Late 20th century ∙ 1970 - 1999

40%

Modern ∙ 2000 or later

35%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Mandan	Morton County	North Dakota
Rooms per unit
Median rooms	5.9	6.2	5.7
1–3 rooms	14.4%	11.8%	15.7%
4–6 rooms	42.7%	41.8%	44.8%
7+ rooms	42.8%	46.5%	39.4%
Bedrooms
No bedroom / studio	2%	1.6%	3.2%
1 bedroom	10.2%	9%	9.7%
2 bedrooms	23.6%	22.4%	27.9%
3 bedrooms	31%	32.5%	31.5%
4+ bedrooms	33.2%	34.4%	27.9%
At a glance
Median year built	1981	1980	1983
Total housing units	11,491	15,465	377,281

Occupancy Profile

Who is inside and how they use it

Homeownership

69% owners

Renter-occupied 31%

Owner-occupied 69%

homeownership rate

Mandan 69%

Morton County 74.2%

North Dakota 62.9%

Average household size

2.49

Owner-occupied

1.86

Renter-occupied

owner-occupied average size

Mandan 2.49

Morton County 2.55

North Dakota 2.5

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Mandan	Morton County	North Dakota
Total occupied units	10,465	13,946	331,063
Year moved in
2020 or later	26%	22.9%	28.1%
2010 to 2019	41.7%	41%	39.7%
2000 to 2009	11.7%	12.7%	13.8%
1999 or earlier	20.6%	23.4%	18.4%
Occupants per room
1.00 or fewer	99%	99.1%	97.8%
1.01 to 1.50	0.6%	0.6%	1.5%
1.51 or more	0.3%	0.3%	0.8%
Vehicles availability
No vehicles	2.7%	2.5%	5.9%
1 vehicle	25.3%	22.7%	30.1%
2 vehicles	37.3%	35.9%	37.2%
3 or more vehicles	34.8%	38.9%	26.8%
House heating fuel used
Gas	79.4%	78.8%	54.8%
Electricity	18.2%	17.9%	40%
Solar	0%	0%	0%
Fuel oil, kerosene etc	0.2%	0.2%	1.9%
All other fuels	1.4%	2.2%	2%
No fuel used	0.9%	0.9%	1.3%
Selected characteristics
Lacking complete plumbing	0.1%	0.1%	0.4%
Lacking complete kitchen	0.2%	0.2%	0.6%
No telephone service available	0.3%	0.3%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$259,800

owner-occupied units

Median value(USD)

Mandan

$259,800

Morton County

$263,900

North Dakota

$249,900

Housing Cost Burden

28.5%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

28.5%

Owners without a mortgage

5.7%

Renters

45.6%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Mandan	Morton County	North Dakota
Property value
Median Value	$259,800	$263,900	$249,900
Under $100,000	10.8%	13.5%	16.3%
$100,000 - $200,000	20.8%	19.9%	19.6%
$200,000 - $300,000	32.8%	26.7%	25.6%
$300,000 - $500,000	23.4%	25%	27.4%
$500,000 - $1,000,000	11.7%	14.4%	9.7%
$1,000,000 and more	0.5%	0.5%	1.3%
Owner-occupied households
With a mortgage	59.3%	57.7%	52.3%
Without a mortgage	40.7%	42.3%	47.7%
Median monthly owner costs
With a mortgage	$1,695	$1,763	$1,762
Without a mortgage	$641	$622	$590
Gross rent
Median rent	$1,083	$1,076	$954

Education Profile

How educated is the community and how education pays off

Adults with a college degree

30.2%

of adults 25+ with a bachelor's degree or higher

Mandan 30.2%

Morton County 28.8%

North Dakota 32.7%

Adults without a high school diploma

4.7%

of adults (25+) without a high school diploma

Mandan 4.7%

Morton County 5.2%

North Dakota 5.9%

School Enrollment

Who is enrolled in school and at what level

School enrollment

5,549

population (age 3+) enrolled in school

Nursery / Preschool

7.5%

K–12

70.3%

College / Undergraduate

18.3%

Graduate / Professional

3.9%

College-going rate (18-24 yr olds)

25.2%

of 18-24-year-olds in college or graduate school

Mandan

25.2%

Morton County

24.4%

North Dakota

45.2%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Mandan	Morton County	North Dakota
Total enrolled (age 3+)	5,549	7,279	198,150
Nursery / preschool	7.5%	6.9%	4.9%
K–12	70.3%	73.3%	65%
Kindergarten	5.4%	5.7%	4.8%
Elementary: Grades 1–4	19.7%	22.1%	20.3%
Elementary: Grades 5–8	25.8%	26.9%	21%
High School: Grades 9–12	19.5%	18.6%	18.9%
College or graduate school	22.2%	19.8%	30.1%
College, undergraduate	18.3%	16.5%	24%
Graduate, professional school	3.9%	3.3%	6.1%
College-going rate · 18-24 yr olds	25.2%	24.4%	45.2%
School type
Public school	93.8%	92.1%	87.1%
Private school	6.2%	7.9%	12.9%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

16,646

population 25 years and over

Total adults (25+)

Less than 9th grade

2.1%

9th-12th, no diploma

2.6%

HS graduate

28%

Some college no degree

24.8%

Associates degree

12.2%

Bachelors degree

23.2%

Graduate or professional degree

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

29.1% · 70.9%

9th-12th, no diploma

75.1% · 24.9%

HS graduate

52.6% · 47.4%

Some college no degree

50.4% · 49.6%

Associates degree

50.6% · 49.4%

Bachelors degree

50.6% · 49.4%

Graduate or professional degree

37.7% · 62.3%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Mandan	Morton County	North Dakota
Population (25+)	16,646	23,271	513,405
Less than 9th grade	2.1%	2.4%	2.3%
9th–12th, no diploma	2.6%	2.8%	3.6%
High school diploma or GED	28%	29.5%	25.5%
Some college, no degree	24.8%	24.3%	21.8%
Associate's degree	12.2%	12.2%	14%
Bachelor's degree or higher	30.2%	28.8%	32.7%
Bachelor's degree	23.2%	22.2%	23%
Graduate or professional	7%	6.5%	9.7%
High School or higher	95.2%	94.8%	94%

Earnings by education level

percentage as applicable

Median Earnings

$50,011

Median earnings for adults 25+, by level

Less than HS graduate

$22,861

HS graduate

$42,152

Some college or associates

$46,413

Bachelors degree

$62,969

Graduate or professional degree

$72,766

Poverty Rate

2.4%

for ages 25+, with bachelors degree or higher

Less than HS graduate

26.8%

HS graduate

10.1%

Some college or associates

8.6%

Bachelors degree or higher

2.4%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Mandan	Morton County	North Dakota
Median earnings
Population 25+, with earnings	$50,011	$51,161	$52,900
Less than high school graduate	$22,861	$23,813	$40,757
High school graduate (includes equivalency)	$42,152	$41,543	$43,691
Some college or associate's degree	$46,413	$50,589	$50,379
Bachelor's degree	$62,969	$65,090	$60,962
Graduate or professional degree	$72,766	$74,401	$74,877
Poverty rates
Less than high school graduate	26.8%	21.6%	21.4%
High school graduate (includes equivalency)	10.1%	8.5%	12.9%
Some college or associate's degree	8.6%	6.7%	7.9%
Bachelor's degree or higher	2.4%	2%	4%

Insights for Mandan, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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