ZIP Code 58370 — Saint Michael, ND
58370 is a standard (street delivery) ZIP code serving Saint Michael, North Dakota, in Benson 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 58370 at a glance
| ZIP code | 58370 |
|---|---|
| Primary city | Saint Michael |
| State | North Dakota (ND) |
| County | Benson FIPS 38005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,108 |
| Coordinates | 47.984200, -98.859770 |
How ZIP+4 works in 58370
The four digits after the hyphen encode a delivery segment inside 58370. 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 58370 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 58370.
| ZIP | City | Distance |
|---|---|---|
| 58379 | Tokio, ND | 5.6 mi |
| 58335 | Fort Totten, ND | 6.7 mi |
| 58301 | Devils Lake, ND | 10.2 mi |
| 58381 | Warwick, ND | 12.1 mi |
| 58374 | Sheyenne, ND | 15.2 mi |
| 58327 | Crary, ND | 15.5 mi |
| 58357 | Oberon, ND | 16.8 mi |
| 58380 | Tolna, ND | 19 mi |
| 58362 | Penn, ND | 19.3 mi |
| 58351 | Minnewaukan, ND | 22.5 mi |
| 58382 | Webster, ND | 23.2 mi |
| 58356 | New Rockford, ND | 23.8 mi |
Questions about 58370
What is the ZIP+4 code for 58370?
58370 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 58370, you need to look up a specific street address to get them.
What city is 58370?
58370 is assigned to Saint Michael, North Dakota, in Benson 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.