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Where 58231 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 58231 into a pocket calculator and turn it upside down: IEZBS — not quite a word, sorry.
- ➕ 58231 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110001101110111 - 🏠 Its numerical neighbours: 58230 (Finley, ND, 49 mi away) and 58233 (Forest River, ND, 13 mi away).
- 🔄 Backwards, 58231 becomes 13285, which is not a ZIP code at all.
- 👥 57 other ZIP codes are made of exactly the same digits (12538, 12583, 12835, 12853, 13825, 15238, …). The farthest-flung twin is 32815 in Orlando, FL, 1,651 miles away.
- 🧭 Farther north than 98% of all ZIP codes, and farther west than 77%.
- 🎯580 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 58231 and you would come out at 48.20°S, 82.17°E — 549 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 16h 05m of daylight. Shortest: 8h 20m.
- 📏 At 119.4 square miles of land, 58231 is bigger than 82% of ZIP codes — room for about 91 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 461This ZIP461 |
|---|---|
| Households | 170This ZIP170 |
| Housing units | 183This ZIP183 |
| Median age | 40.4This ZIP40.4North Dakota35.9US 38.9 |
| Median household income | $85,833This ZIP$85,833North Dakota$76,657US $80,734 |
| Median home value | $95,000This ZIP$95,000North Dakota$249,900US $332,700 |
| Bachelor's degree or higher | 21.9%This ZIP21.9% |
| Mean commute | 22.9 minThis ZIP22.9 min |
| Population density | 3.9 / sq miThis ZIP3.9 / sq mi |
Business and tax activity
| Business establishments | 8This ZIP8 |
|---|---|
| Employees | 28This ZIP28 |
| Annual payroll | $1,921,000This ZIP$1,921,000 |
| Tax returns filed | 230This ZIP230 |
| Total adjusted gross income | $17,420,000This ZIP$17,420,000 |
Land area
| Land area | 119.39 sq miThis ZIP119.39 sq mi |
|---|---|
| Water area | 0.48 sq miThis ZIP0.48 sq mi |
Counties 58231 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Walsh County | 59.9% |
| Grand Forks County | 40.1% |
Other place names in 58231
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 58231
| ZIP | City | Distance |
|---|---|---|
58224 | Dahlen, ND | 5.8 mi |
58273 | Pisek, ND | 10.1 mi |
58244 | Inkster, ND | 10.2 mi |
58250 | Lankin, ND | 10.2 mi |
58233 | Forest River, ND | 13.0 mi |
58270 | Park River, ND | 13.4 mi |
58266 | Niagara, ND | 13.9 mi |
58272 | Petersburg, ND | 15.2 mi |
58235 | Gilby, ND | 17.7 mi |
58251 | Larimore, ND | 18.1 mi |
Find every ZIP code within 10 miles of 58231 →
Questions about this ZIP code
Where is ZIP code 58231?
58231 is in Fordville, North Dakota, in Walsh County. Its published point location is 48.2022, -97.8294.
What county is 58231 in?
58231 spans 2 counties: Walsh County and Grand Forks County. Most of it falls in Walsh County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 58231?
Fordville uses area code 701, from NANPA's telephone records.
What time zone is 58231 in?
58231 uses America/Chicago.
How many people live in 58231?
About 461 people live in ZIP code 58231, in 170 households, at 3.9 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 58231?
$85,833 a year, against $76,657 across North Dakota.
What ZIP codes are near 58231?
The closest are 58224 (5.8 mi), 58273 (10.1 mi), 58244 (10.2 mi), 58250 (10.2 mi) and 58233 (13 mi).
Is 58231 a PO Box ZIP code?
58231 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “58231 ZIP Code — Fordville, North Dakota (Walsh County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/58231
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/58231.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.