ZIP Code 58045 — Hillsboro, ND
58045 is a standard (street delivery) ZIP code serving Hillsboro, North Dakota, in Traill 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 58045 at a glance
| ZIP code | 58045 |
|---|---|
| Primary city | Hillsboro |
| State | North Dakota (ND) |
| County | Traill FIPS 38097 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,239 |
| Coordinates | 47.382410, -97.026860 |
How ZIP+4 works in 58045
The four digits after the hyphen encode a delivery segment inside 58045. 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 58045 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 58045.
| ZIP | City | Distance |
|---|---|---|
| 58223 | Cummings, ND | 9.1 mi |
| 58219 | Caledonia, ND | 9.5 mi |
| 58038 | Grandin, ND | 9.6 mi |
| 58009 | Blanchard, ND | 10.9 mi |
| 56548 | Halstad, MN | 12.8 mi |
| 56581 | Shelly, MN | 13.4 mi |
| 58257 | Mayville, ND | 14.2 mi |
| 58218 | Buxton, ND | 14.9 mi |
| 56550 | Hendrum, MN | 15.1 mi |
| 56568 | Nielsville, MN | 15.4 mi |
| 58048 | Hunter, ND | 15.8 mi |
| 58036 | Gardner, ND | 16 mi |
Questions about 58045
What is the ZIP+4 code for 58045?
58045 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 58045, you need to look up a specific street address to get them.
What city is 58045?
58045 is assigned to Hillsboro, North Dakota, in Traill 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.