58531 ZIP Code — Coleharbor, ND

Mclean County, North Dakota

ZIP code 58531 is located in Coleharbor, North Dakota, within Mclean County. It covers approximately 118.20 square miles and serves a population of 341 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 701.

About ZIP code 58531

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $317,000.

Median household income is $77,188. The poverty rate of 7% is below the national average. 78% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is natural resources, construction, and trades, with agriculture and mining as the leading industry. The average commute of 26 minutes is near the national average.

College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 58531 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

341

population

118.20

sq mi land

Standard

ZIP type

Central (CT)

timezone

58531 ZIP code map

Cities in ZIP code 58531

Below are the cities the US Postal Service accepts for ZIP code 58531. Using any city not on this list may result in mail delivery delays.

City	Status
Coleharbor	Preferred

Nearby ZIP codes

58565 Riverdale (8.1 mi) 58576 Underwood (10.1 mi) 58716 Benedict (15.3 mi) 58575 Turtle Lake (15.5 mi) 58759 Max (15.6 mi) 58540 Garrison (17.5 mi) 58577 Washburn (19.7 mi)

Demographics updated 05/2026

Population
Total population	341
Population density	3 / sq mi
State FIPS	38
County FIPS	055

Geography
Land area	118.20 sq mi
Water area	45.55 sq mi
Latitude	47.5813
Longitude	-101.2041
Timezone	Central (CT)
Area code	701

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.3%	34.7%	37.8%
$50k – $100k	40.6%	34.7%	32.8%
$100k – $200k	3.6%	25.6%	23.3%
Over $200k	20.5%	5.1%	6.0%

Demographics & statistics

341

Population

People per sq mi

66.1

Median age

$77,188

Median household income

$46,187

Per capita income

$317,000

Median home value

Median monthly rent

100.0%

Home ownership

6.7%

Poverty rate

7.1%

Unemployment

301

Housing units

18.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	12	3.5%
18 and over	329	96.5%
65 and over	181	53.1%
Median age	66.1 years

Race & ethnicity

White 97.4%

American Indian / Alaska Native 1.8%

Two or more races 0.9%

Group	Count	%
White	332	97.4%
American Indian / Alaska Native	6	1.8%
Two or more races	3	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.3%	34.7%	37.8%
$50k – $100k	40.6%	34.7%	32.8%
$100k – $200k	3.6%	25.6%	23.3%
Over $200k	20.5%	5.1%	6.0%

Under $10k 3.8%

$10k–$15k 2.2%

$15k–$25k 2.7%

$25k–$35k 1.1%

$35k–$50k 20.5%

$50k–$75k 17.8%

$75k–$100k 21.1%

$100k–$150k 9.7%

$150k–$200k 5.4%

$200k+ 15.7%

Range	% of households
Under $10k	3.8%
$10k–$15k	2.2%
$15k–$25k	2.7%
$25k–$35k	1.1%
$35k–$50k	20.5%
$50k–$75k	17.8%
$75k–$100k	21.1%
$100k–$150k	9.7%
$150k–$200k	5.4%
$200k+	15.7%
Median income	$77,188

Housing

Home values

Under $50k 10.3%

$50k–$100k 5.9%

$100k–$150k 5.9%

$150k–$200k 3.2%

$200k–$300k 20.0%

$300k–$500k 47.6%

$500k–$1M 7.0%

Housing overview

Metric	Value
Median home value	$317,000
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	38.5%
Single-family detached	90.0%
Large apartment buildings	0.0%
Mobile homes	10.0%
Median rooms	7.3
Avg household size (owned)	1.84

Year built

Era	%
2020 or later	0.0%
2010–2019	16.9%
2000–2009	23.9%
1990–1999	9.6%
1980–1989	5.0%
1970–1979	15.9%
1960–1969	4.3%
1950–1959	13.6%
1940–1949	3.7%
1939 or earlier	7.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.3%
2 bedrooms	10.6%
3 bedrooms	57.1%
4 bedrooms	17.3%
5+ bedrooms	11.6%

Vehicles per household

Vehicles	% of households
No vehicle	3.8%
1 vehicle	15.7%
2 vehicles	35.1%
3 or more	45.4%

Heating fuel

Fuel type	%
Utility gas	0.5%
Electricity	44.9%
Propane / LP gas	40.5%
Fuel oil	0.5%
Wood	2.7%
No fuel used	1.1%

Households & families

Household type	Count	%
Married-couple family	146	78.9%
Cohabiting couple	8	4.3%
Male householder, no spouse	14	7.6%
Female householder, no spouse	17	9.2%
Households with children under 18	12	6.5%
Households with seniors (65+)	139	75.1%
Average household size	1.84

Marital status

Status	Male	Female
Never married	6.7%	1.3%
Married	82.8%	82.1%
Separated	1.7%	0.0%
Widowed	5.6%	10.6%
Divorced	3.3%	6.0%

Education

Less than 9th grade 5.3%

Some HS, no diploma 2.8%

HS graduate 34.7%

Some college, no degree 16.4%

Associate's degree 22.3%

Bachelor's degree 16.7%

Graduate / professional 1.9%

Metric	%
HS diploma or higher	92.0%
Bachelor's or higher	18.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	2	16.7%
High school	8	66.7%
College / grad school	2	16.7%

Employment

Industry of employment

Agriculture & mining 23.1%

Wholesale trade 19.2%

Construction 17.3%

Education & healthcare 17.3%

Transportation & utilities 11.5%

Professional & management 5.8%

Retail trade 3.8%

Manufacturing 1.9%

Occupation

Category	%
Management, business & arts	23.1%
Service	0.0%
Sales & office	9.6%
Natural resources & construction	44.2%
Production & transportation	23.1%

Employment type

Type	%
Private sector	73.1%
Government	21.2%
Self-employed	5.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	80.8%
Carpool	15.4%
Public transit	0.0%
Walk	0.0%
Work from home	3.8%
Other means	0.0%
Avg commute (minutes)	26.4

Poverty

All people 6.7%

Under 18 years 0.0%

18 and over 7.0%

Married-couple families 4.1%

Female-led households 0.0%

Income support

Source	% of households
Social Security	77.8%
Retirement income	73.0%
Supplemental Security	3.8%
Cash public assistance	0.0%
Food stamps / SNAP	2.2%

Health indicators

Condition	%
Obesity	36.9%
High blood pressure	42.8%
High cholesterol	38.3%
Diabetes	12.8%
Heart disease	8.6%
Stroke	3.7%
Asthma	8.7%
Arthritis	31.5%
Kidney disease	3.4%
Pulmonary disease	7.8%
Cancer	9.1%

Behavior / access	%
Smoking	18.0%
Binge drinking	17.7%
No physical activity	26.1%
Less than 7 hrs sleep	26.1%
Depression	16.9%
Fair or poor health	13.7%
Poor mental health	10.5%
Poor physical health	10.5%
No health insurance	9.0%
Visited doctor (checkup)	74.7%
Visited dentist	65.3%
Cholesterol screening	93.3%
Teeth loss	12.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	28	8.5%

Disability	%
Any disability	15.2%
Under 18	0.0%
18–64 years	0.0%
65 and over	28.7%

Health insurance coverage

Type	%
Private insurance	79.8%
Public insurance	59.8%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	339	99.4%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	341	100.0%
Born in same state	341	100.0%
Born in different state	292	85.6%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Polish	86	25.2%
Italian	39	11.4%
French	22	6.5%

Ancestry	Count	%
Arab	10	2.9%
English	5	1.5%

Technology access

Metric	% of households
Computer access	54.3%
Internet access	99.5%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 58531

What city is ZIP code 58531 in?

ZIP code 58531 is primarily assigned to Coleharbor, North Dakota.

What county is ZIP code 58531 in?

ZIP code 58531 falls within Mclean County, North Dakota.

Does ZIP code 58531 have an older population?

53% of residents in ZIP code 58531 are 65 or older, above the national average of ~17%.

Does ZIP code 58531 have a large retiree population?

78% of households in ZIP code 58531 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 58531?

The median home value in ZIP code 58531 is $317,000.

What is the population of ZIP code 58531?

ZIP code 58531 has an estimated population of 341 residents, with a density of 3 people per square mile.

What timezone is ZIP code 58531 in?

ZIP code 58531 observes the CST timezone.