ZIP Code 58421 — Carrington, ND
58421 is a standard (street delivery) ZIP code serving Carrington, North Dakota, in Foster 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 58421 at a glance
| ZIP code | 58421 |
|---|---|
| Primary city | Carrington |
| State | North Dakota (ND) |
| County | Foster FIPS 38031 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,969 |
| Coordinates | 47.439740, -99.069680 |
How ZIP+4 works in 58421
The four digits after the hyphen encode a delivery segment inside 58421. 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 58421 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 58421.
| ZIP | City | Distance |
|---|---|---|
| 58486 | Sykeston, ND | 15.4 mi |
| 58445 | Grace City, ND | 15.9 mi |
| 58356 | New Rockford, ND | 16 mi |
| 58476 | Pingree, ND | 17.2 mi |
| 58443 | Glenfield, ND | 18.6 mi |
| 58455 | Kensal, ND | 18.7 mi |
| 58422 | Cathay, ND | 18.7 mi |
| 58496 | Woodworth, ND | 23.4 mi |
| 58464 | Mchenry, ND | 25.3 mi |
| 58418 | Bowdon, ND | 26.4 mi |
| 58374 | Sheyenne, ND | 26.9 mi |
| 58426 | Courtenay, ND | 27.4 mi |
Questions about 58421
What is the ZIP+4 code for 58421?
58421 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 58421, you need to look up a specific street address to get them.
What city is 58421?
58421 is assigned to Carrington, North Dakota, in Foster 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.