ZIP Code 59059 — Musselshell, MT
59059 is a standard (street delivery) ZIP code serving Musselshell, Montana, in Musselshell 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 59059 at a glance
| ZIP code | 59059 |
|---|---|
| Primary city | Musselshell |
| State | Montana (MT) |
| County | Musselshell FIPS 30065 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 159 |
| Coordinates | 46.511610, -108.088000 |
How ZIP+4 works in 59059
The four digits after the hyphen encode a delivery segment inside 59059. 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 59059 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 59059.
| ZIP | City | Distance |
|---|---|---|
| 59054 | Melstone, MT | 18.6 mi |
| 59072 | Roundup, MT | 21.9 mi |
| 59083 | Sumatra, MT | 25.1 mi |
| 59088 | Worden, MT | 26.5 mi |
| 59024 | Custer, MT | 27.6 mi |
| 59079 | Shepherd, MT | 33.8 mi |
| 59058 | Mosby, MT | 35.5 mi |
Questions about 59059
What is the ZIP+4 code for 59059?
59059 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 59059, you need to look up a specific street address to get them.
What city is 59059?
59059 is assigned to Musselshell, Montana, in Musselshell 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.