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Where 58323 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 58323 into a pocket calculator and turn it upside down: EZEBS — not quite a word, sorry.
- ➕ As a number, 58,323 = 3 × 19441. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110001111010011 - 🏠 Its numerical neighbours: 58321 (Brocket, ND, 52 mi away) and 58324 (Cando, ND, 28 mi away).
- 🔄 Backwards, 58323 becomes 32385, which is not a ZIP code at all.
- 👥 30 other ZIP codes are made of exactly the same digits (23358, 25338, 25833, 28335, 28353, 28533, …). The farthest-flung twin is 33852 in Lake Placid, FL, 1,761 miles away.
- 🧭 Farther north than 98% of all ZIP codes, and farther west than 78%.
- 🎯623 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 58323 and you would come out at 48.84°S, 81.08°E — 492 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 16h 11m of daylight. Shortest: 8h 15m.
- 📏 At 75.6 square miles of land, 58323 is bigger than 71% of ZIP codes — room for about 57 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 72This ZIP72 |
|---|---|
| Households | 13This ZIP13 |
| Housing units | 23This ZIP23 |
| Median age | 18.7This ZIP18.7North Dakota35.9US 38.9 |
| Median household income | $250,000+This ZIP$250,000+North Dakota$76,657US $80,734 |
| Bachelor's degree or higher | 36.0%This ZIP36.0% |
| Population density | 1.0 / sq miThis ZIP1.0 / sq mi |
Land area
| Land area | 75.64 sq miThis ZIP75.64 sq mi |
|---|---|
| Water area | 0.65 sq miThis ZIP0.65 sq mi |
Counties 58323 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Cavalier County | 81.5% |
| Towner County | 18.4% |
Other place names in 58323
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 58323
| ZIP | City | Distance |
|---|---|---|
58372 | Sarles, ND | 8.1 mi |
58352 | Munich, ND | 10.5 mi |
58239 | Hannah, ND | 12.1 mi |
58281 | Wales, ND | 14.0 mi |
58365 | Rocklake, ND | 14.0 mi |
58331 | Egeland, ND | 16.0 mi |
58339 | Hansboro, ND | 20.4 mi |
58311 | Alsen, ND | 21.5 mi |
58363 | Perth, ND | 25.2 mi |
58338 | Hampden, ND | 25.6 mi |
Find every ZIP code within 10 miles of 58323 →
Questions about this ZIP code
Where is ZIP code 58323?
58323 is in Calvin, North Dakota, in Cavalier County. Its published point location is 48.8415, -98.9231.
What county is 58323 in?
58323 spans 2 counties: Cavalier County and Towner County. Most of it falls in Cavalier 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 58323?
Calvin uses area code 701, from NANPA's telephone records.
What time zone is 58323 in?
58323 uses America/Chicago.
How many people live in 58323?
About 72 people live in ZIP code 58323, in 13 households, at 1.0 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 58323?
$250,000+ a year, against $76,657 across North Dakota.
What ZIP codes are near 58323?
The closest are 58372 (8.1 mi), 58352 (10.5 mi), 58239 (12.1 mi), 58281 (14 mi) and 58365 (14 mi).
Is 58323 a PO Box ZIP code?
58323 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “58323 ZIP Code — Calvin, North Dakota (Cavalier County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/58323
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/58323.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.