ZIP Code 58311 — Alsen, ND
58311 is a standard (street delivery) ZIP code serving Alsen, North Dakota, in Cavalier County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 58311 at a glance
| ZIP code | 58311 |
|---|---|
| Primary city | Alsen |
| State | North Dakota (ND) |
| County | Cavalier FIPS 38019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 60 |
| Coordinates | 48.651110, -98.573120 |
How ZIP+4 works in 58311
The four digits after the hyphen encode a delivery segment inside 58311. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 58311 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 58311.
| ZIP | City | Distance |
|---|---|---|
| 58338 | Hampden, ND | 8.8 mi |
| 58355 | Nekoma, ND | 10 mi |
| 58352 | Munich, ND | 13.6 mi |
| 58281 | Wales, ND | 14.5 mi |
| 58330 | Edmore, ND | 15 mi |
| 58249 | Langdon, ND | 16.3 mi |
| 58229 | Fairdale, ND | 17.3 mi |
| 58377 | Starkweather, ND | 18.8 mi |
| 58269 | Osnabrock, ND | 19.4 mi |
| 58323 | Calvin, ND | 20.6 mi |
| 58239 | Hannah, ND | 20.8 mi |
| 58331 | Egeland, ND | 23.7 mi |
Questions about 58311
What is the ZIP+4 code for 58311?
58311 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 58311, you need to look up a specific street address to get them.
What city is 58311?
58311 is assigned to Alsen, North Dakota, in Cavalier County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.