58237 ZIP Code — Grafton, ND

Walsh County, North Dakota

ZIP code 58237 is located in Grafton, North Dakota, within Walsh County. It covers approximately 250.28 square miles and serves a population of 5,156 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 701.

About ZIP code 58237

The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $121,800. Owner-occupancy sits near the national average at 71%.

Median household income is $66,050. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 15 minutes is near the national average.

College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

Overall, ZIP code 58237 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.

5,156

population

250.28

sq mi land

Standard

ZIP type

Central (CT)

timezone

58237 ZIP code map

Cities in ZIP code 58237

Below are the cities the US Postal Service accepts for ZIP code 58237. Using any city not on this list may result in mail delivery delays.

City	Status
Grafton	Acceptable
Grafton	Preferred

Nearby ZIP codes

58261 Minto (10.5 mi) 58233 Forest River (14.1 mi) 58225 Drayton (15.3 mi) 58243 Hoople (15.5 mi) 58273 Pisek (16.1 mi) 58276 Saint Thomas (16.2 mi) 58270 Park River (18.7 mi) 56744 Oslo (19.2 mi)

Demographics updated 05/2026

Population
Total population	5,156
Population density	21 / sq mi
State FIPS	38
County FIPS	099

Geography
Land area	250.28 sq mi
Water area	0.92 sq mi
Latitude	48.3979
Longitude	-97.3831
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	46.2%	43.3%	37.8%
$50k – $100k	31.7%	34.3%	32.8%
$100k – $200k	15.8%	17.4%	23.3%
Over $200k	6.3%	5.0%	6.0%

Demographics & statistics

5,156

Population

People per sq mi

40.3

Median age

$66,050

Median household income

$36,645

Per capita income

$121,800

Median home value

$646

Median monthly rent

70.9%

Home ownership

9.1%

Poverty rate

2.7%

Unemployment

1,700

Housing units

17.3%

Bachelor's or higher

Age distribution

Male Female

150

Under 5

146

267

5–9

261

144

10–14

140

145

15–19

141

143

20–24

140

293

25–34

287

256

35–44

251

311

45–54

304

178

55–59

174

205

60–64

201

254

65–74

249

121

75–84

118

140

85+

137

← Male

Female →

Age summary

Group	Count	%
Under 18	1,271	24.7%
18 and over	3,885	75.3%
65 and over	1,019	19.8%
Median age	40.3 years

Race & ethnicity

White 76.3%

Hispanic or Latino 9.8%

Two or more races 7.9%

Other race 3.3%

Black or African American 1.2%

Asian 1.1%

American Indian / Alaska Native 0.4%

Group	Count	%
White	4,363	76.3%
Hispanic or Latino	559	9.8%
Two or more races	449	7.9%
Other race	188	3.3%
Black or African American	68	1.2%
Asian	64	1.1%
American Indian / Alaska Native	24	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.2%	43.3%	37.8%
$50k – $100k	31.7%	34.3%	32.8%
$100k – $200k	15.8%	17.4%	23.3%
Over $200k	6.3%	5.0%	6.0%

Under $10k 5.9%

$10k–$15k 5.3%

$15k–$25k 3.4%

$25k–$35k 10.4%

$35k–$50k 16.5%

$50k–$75k 17.8%

$75k–$100k 12.7%

$100k–$150k 14.4%

$150k–$200k 9.2%

$200k+ 4.4%

Range	% of households
Under $10k	5.9%
$10k–$15k	5.3%
$15k–$25k	3.4%
$25k–$35k	10.4%
$35k–$50k	16.5%
$50k–$75k	17.8%
$75k–$100k	12.7%
$100k–$150k	14.4%
$150k–$200k	9.2%
$200k+	4.4%
Median income	$66,050

Housing

Home values

Under $50k 19.3%

$50k–$100k 23.1%

$100k–$150k 14.3%

$150k–$200k 17.8%

$200k–$300k 16.8%

$300k–$500k 7.4%

$500k–$1M 0.9%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$121,800
Median rent / month	$646
Owner occupied	70.9%
Renter occupied	29.1%
Vacant	8.0%
Single-family detached	69.4%
Large apartment buildings	3.4%
Mobile homes	5.8%
Median rooms	6.0
Avg household size (owned)	2.45

Year built

Era	%
2020 or later	0.0%
2010–2019	4.0%
2000–2009	6.3%
1990–1999	6.6%
1980–1989	9.5%
1970–1979	25.9%
1960–1969	17.0%
1950–1959	10.7%
1940–1949	6.9%
1939 or earlier	13.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.2%
1 bedroom	10.6%
2 bedrooms	26.0%
3 bedrooms	41.9%
4 bedrooms	13.8%
5+ bedrooms	5.6%

Vehicles per household

Vehicles	% of households
No vehicle	7.8%
1 vehicle	26.6%
2 vehicles	44.4%
3 or more	21.2%

Heating fuel

Fuel type	%
Utility gas	59.1%
Electricity	27.4%
Propane / LP gas	6.5%
Fuel oil	3.3%
Wood	1.4%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	1,014	47.5%
Cohabiting couple	176	8.2%
Male householder, no spouse	465	21.8%
Female householder, no spouse	479	22.4%
Households with children under 18	482	22.6%
Households with seniors (65+)	691	32.4%
Average household size	2.26

Marital status

Status	Male	Female
Never married	31.6%	24.7%
Married	51.9%	50.1%
Separated	0.7%	4.6%
Widowed	4.3%	12.0%
Divorced	11.5%	8.6%

Education

Less than 9th grade 8.2%

Some HS, no diploma 7.5%

HS graduate 40.4%

Some college, no degree 15.0%

Associate's degree 11.6%

Bachelor's degree 11.0%

Graduate / professional 6.3%

Metric	%
HS diploma or higher	84.2%
Bachelor's or higher	17.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	20	1.8%
Kindergarten	146	13.1%
Elementary school	582	52.4%
High school	239	21.5%
College / grad school	124	11.2%

Employment

Industry of employment

Education & healthcare 35.5%

Manufacturing 10.9%

Agriculture & mining 10.5%

Retail trade 10.4%

Construction 7.6%

Other services 5.4%

Professional & management 4.1%

Transportation & utilities 4.0%

Public administration 3.4%

Finance & real estate 2.9%

Wholesale trade 2.4%

Arts, food & hospitality 2.0%

Information 0.9%

Occupation

Category	%
Management, business & arts	33.5%
Service	19.5%
Sales & office	14.8%
Natural resources & construction	14.0%
Production & transportation	18.2%

Employment type

Type	%
Private sector	76.4%
Government	17.8%
Self-employed	5.4%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	78.4%
Carpool	13.9%
Public transit	0.7%
Walk	4.5%
Work from home	2.3%
Other means	0.1%
Avg commute (minutes)	14.8

Poverty

All people 9.1%

Under 18 years 6.6%

18 and over 10.0%

Married-couple families 2.4%

Female-led households 16.0%

Income support

Source	% of households
Social Security	35.1%
Retirement income	21.3%
Supplemental Security	3.0%
Cash public assistance	1.7%
Food stamps / SNAP	5.4%

Health indicators

Condition	%
Obesity	33.8%
High blood pressure	37.0%
High cholesterol	33.2%
Diabetes	12.0%
Heart disease	8.3%
Stroke	4.0%
Asthma	9.5%
Arthritis	28.9%
Kidney disease	3.6%
Pulmonary disease	8.4%
Cancer	7.8%

Behavior / access	%
Smoking	21.3%
Binge drinking	18.9%
No physical activity	32.7%
Less than 7 hrs sleep	32.7%
Depression	18.8%
Fair or poor health	17.1%
Poor mental health	13.1%
Poor physical health	11.6%
No health insurance	13.5%
Visited doctor (checkup)	71.1%
Visited dentist	54.8%
Cholesterol screening	88.0%
Teeth loss	17.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	303	7.9%

Disability	%
Any disability	14.6%
Under 18	4.6%
18–64 years	11.2%
65 and over	39.4%

Health insurance coverage

Type	%
Private insurance	77.8%
Public insurance	32.8%
No insurance	9.1%
Uninsured under 19	11.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,860	94.3%
Spanish	145	3.0%
Other Indo-European	128	2.6%
Asian & Pacific Islander	10	0.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,943	95.9%
Born in same state	4,857	94.2%
Born in different state	3,503	67.9%
Foreign born	86	1.7%
Naturalized citizen	213	4.1%
Not a US citizen	131	61.5%

Ancestry

Ancestry	Count	%
Polish	1,155	22.4%
Italian	262	5.1%
French	173	3.4%
German	119	2.3%

Ancestry	Count	%
Arab	119	2.3%
English	28	0.5%
Dutch	6	0.1%

Technology access

Metric	% of households
Computer access	41.4%
Internet access	86.8%

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

Frequently asked questions about ZIP code 58237

What city is ZIP code 58237 in?

ZIP code 58237 is primarily assigned to Grafton, North Dakota.

What county is ZIP code 58237 in?

ZIP code 58237 falls within Walsh County, North Dakota.

What is the typical home value in ZIP code 58237?

The median home value in ZIP code 58237 is $121,800.

Does ZIP code 58237 have a large retiree population?

35% of households in ZIP code 58237 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 58237?

ZIP code 58237 has an estimated population of 5,156 residents, with a density of 21 people per square mile.

What is the median household income in ZIP code 58237?

The median household income in ZIP code 58237 is $66,050, below the national median of ~$75,000.

What timezone is ZIP code 58237 in?

ZIP code 58237 observes the CST timezone.