ZIP Code 58365 — Rocklake, ND
58365 is a standard (street delivery) ZIP code serving Rocklake, North Dakota, in Towner 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 58365 at a glance
| ZIP code | 58365 |
|---|---|
| Primary city | Rocklake |
| State | North Dakota (ND) |
| County | Towner FIPS 38095 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 157 |
| Coordinates | 48.836550, -99.236260 |
How ZIP+4 works in 58365
The four digits after the hyphen encode a delivery segment inside 58365. 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 58365 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 58365.
| ZIP | City | Distance |
|---|---|---|
| 58339 | Hansboro, ND | 10.2 mi |
| 58363 | Perth, ND | 11.6 mi |
| 58372 | Sarles, ND | 12.6 mi |
| 58323 | Calvin, ND | 14.4 mi |
| 58367 | Rolla, ND | 14.7 mi |
| 58331 | Egeland, ND | 15 mi |
| 58317 | Bisbee, ND | 16.1 mi |
| 58352 | Munich, ND | 19.4 mi |
| 58353 | Mylo, ND | 21.3 mi |
| 58310 | Agate, ND | 22.5 mi |
| 58324 | Cando, ND | 24.5 mi |
| 58316 | Belcourt, ND | 24.8 mi |
Questions about 58365
What is the ZIP+4 code for 58365?
58365 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 58365, you need to look up a specific street address to get them.
What city is 58365?
58365 is assigned to Rocklake, North Dakota, in Towner 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.