ZIP Code 59910 — Big Arm, MT
59910 is a standard (street delivery) ZIP code serving Big Arm, Montana, in Lake 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 59910 at a glance
| ZIP code | 59910 |
|---|---|
| Primary city | Big Arm |
| State | Montana (MT) |
| County | Lake FIPS 30047 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 692 |
| Coordinates | 47.824090, -114.232710 |
How ZIP+4 works in 59910
The four digits after the hyphen encode a delivery segment inside 59910. 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 59910 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 59910.
| ZIP | City | Distance |
|---|---|---|
| 59914 | Dayton, MT | 4.2 mi |
| 59931 | Rollins, MT | 6.8 mi |
| 59860 | Polson, MT | 8.1 mi |
| 59915 | Elmo, MT | 8.3 mi |
| 59929 | Proctor, MT | 10.5 mi |
| 59922 | Lakeside, MT | 12.1 mi |
| 59932 | Somers, MT | 15.6 mi |
| 59855 | Pablo, MT | 16.3 mi |
| 59911 | Bigfork, MT | 16.3 mi |
| 59845 | Hot Springs, MT | 18.5 mi |
| 59864 | Ronan, MT | 20.8 mi |
| 59920 | Kila, MT | 21.7 mi |
Questions about 59910
What is the ZIP+4 code for 59910?
59910 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 59910, you need to look up a specific street address to get them.
What city is 59910?
59910 is assigned to Big Arm, Montana, in Lake 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.