ZIP Code 58634 — Grassy Butte, ND
58634 is a standard (street delivery) ZIP code serving Grassy Butte, North Dakota, in McKenzie 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 58634 at a glance
| ZIP code | 58634 |
|---|---|
| Primary city | Grassy Butte |
| State | North Dakota (ND) |
| County | McKenzie FIPS 38053 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 402 |
| Coordinates | 47.436830, -103.356470 |
How ZIP+4 works in 58634
The four digits after the hyphen encode a delivery segment inside 58634. 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 58634 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 58634.
| ZIP | City | Distance |
|---|---|---|
| 58627 | Fairfield, ND | 14.2 mi |
| 58835 | Arnegard, ND | 20.9 mi |
| 58640 | Killdeer, ND | 21.5 mi |
| 58854 | Watford City, ND | 27.7 mi |
| 58642 | Manning, ND | 29.2 mi |
| 58831 | Alexander, ND | 31.7 mi |
| 58645 | Medora, ND | 34 mi |
| 58838 | Cartwright, ND | 34.4 mi |
| 58621 | Beach, ND | 35.4 mi |
| 58847 | Keene, ND | 37.8 mi |
Questions about 58634
What is the ZIP+4 code for 58634?
58634 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 58634, you need to look up a specific street address to get them.
What city is 58634?
58634 is assigned to Grassy Butte, North Dakota, in McKenzie 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.