What city is ZIP code 58237?

ZIP code 58237 is in Grafton, ND (Walsh County).

What county is ZIP code 58237 in?

ZIP code 58237 is mostly in Walsh County, North Dakota.

How many people live in ZIP code 58237?

About 4,994 people live in the 58237 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 58237

Grafton, ND, Walsh County

Population

4,994

Land area

250.3sq mi

People per sq mi

City

Grafton

ZIP 58237 and nearby ZIP codes

Full map

ZIP 58237 at a glance

ZIP 58237 (Grafton) is 75% denser than North Dakota as a whole.
Households here earn a median of $70,201 a year, 8% less than the North Dakota figure of $76,657.
A typical owner-occupied home is valued at $155,500 (38% below North Dakota) and median rent is $736 a month.

Local data for ZIP 58237

Counts from official public data

Housing and community stats

ZIP 58237, American Community Survey 2020-2024

Full profile

Median household income

$70,201

Poverty rate

13.6%

Median home value

$155,500

Prices +8.6% in a year

Median rent

$736/mo

Homeownership

68.2%

Bachelor's or higher

17.0%

Median age

42.2

Average commute

16.4 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

182

ZIP Business Patterns 2023

Employees

2,163

$116M annual payroll

PPP loans

$16.8M

395 loans

Campaign donations

$245K

1% D, 10% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 58237, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: winter weather

Storm events since 1996

988

Countywide, mostly hail

Flood insurance policies

1.0% of homes, county

July high / Jan low

81° / 0°F

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 58237, CDC PLACES estimates

All 40 measures

Obesity

35.9%

U.S. 33.3% +2.6 pts

Diabetes

11.9%

U.S. 12.1% about the same

Smoking

14.9%

U.S. 12.8% +2.1 pts

Uninsured (18-64)

11.3%

U.S. 11.1% about the same

Frequently asked questions

What city is ZIP code 58237?: ZIP code 58237 is in Grafton, ND (Walsh County).
What county is ZIP code 58237 in?: ZIP code 58237 is mostly in Walsh County, North Dakota.
How many people live in ZIP code 58237?: About 4,994 people live in the 58237 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.