ZIP Code 58278 — Thompson, ND
58278 is a standard (street delivery) ZIP code serving Thompson, North Dakota, in Grand Forks 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 58278 at a glance
| ZIP code | 58278 |
|---|---|
| Primary city | Thompson |
| State | North Dakota (ND) |
| County | Grand Forks FIPS 38035 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,168 |
| Coordinates | 47.777610, -97.130840 |
How ZIP+4 works in 58278
The four digits after the hyphen encode a delivery segment inside 58278. 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 58278 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 58278.
| ZIP | City | Distance |
|---|---|---|
| 58275 | Reynolds, ND | 6.2 mi |
| 58201 | Grand Forks, ND | 6.3 mi |
| 58202 | Grand Forks, ND | 10.3 mi |
| 58228 | Emerado, ND | 11.9 mi |
| 58218 | Buxton, ND | 13 mi |
| 58203 | Grand Forks, ND | 13.4 mi |
| 56723 | Fisher, MN | 15.2 mi |
| 56721 | East Grand Forks, MN | 15.9 mi |
| 58204 | Grand Forks Afb, ND | 16.8 mi |
| 58205 | Grand Forks Afb, ND | 17.3 mi |
| 56523 | Climax, MN | 17.8 mi |
| 58223 | Cummings, ND | 18.8 mi |
Questions about 58278
What is the ZIP+4 code for 58278?
58278 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 58278, you need to look up a specific street address to get them.
What city is 58278?
58278 is assigned to Thompson, North Dakota, in Grand Forks 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.