ZIP Code 59831 — Dixon, MT
59831 is a standard (street delivery) ZIP code serving Dixon, Montana, in Sanders 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 59831 at a glance
| ZIP code | 59831 |
|---|---|
| Primary city | Dixon |
| State | Montana (MT) |
| County | Sanders FIPS 30089 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 544 |
| Coordinates | 47.277320, -114.362960 |
How ZIP+4 works in 59831
The four digits after the hyphen encode a delivery segment inside 59831. 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 59831 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 59831.
| ZIP | City | Distance |
|---|---|---|
| 59863 | Ravalli, MT | 8.8 mi |
| 59846 | Huson, MT | 11.1 mi |
| 59824 | Charlo, MT | 12.3 mi |
| 59834 | Frenchtown, MT | 15.8 mi |
| 59865 | Saint Ignatius, MT | 17.2 mi |
| 59821 | Arlee, MT | 18.2 mi |
| 59856 | Paradise, MT | 18.9 mi |
| 59864 | Ronan, MT | 21.1 mi |
| 59808 | Missoula, MT | 24.8 mi |
| 59855 | Pablo, MT | 25.1 mi |
| 59804 | Missoula, MT | 26.5 mi |
| 59859 | Plains, MT | 26.6 mi |
Questions about 59831
What is the ZIP+4 code for 59831?
59831 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 59831, you need to look up a specific street address to get them.
What city is 59831?
59831 is assigned to Dixon, Montana, in Sanders 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.