ZIP Code 56728 — Hallock, MN
56728 is a standard (street delivery) ZIP code serving Hallock, Minnesota, in Kittson 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 56728 at a glance
| ZIP code | 56728 |
|---|---|
| Primary city | Hallock |
| State | Minnesota (MN) |
| County | Kittson FIPS 27069 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,116 |
| Coordinates | 48.787360, -96.991490 |
How ZIP+4 works in 56728
The four digits after the hyphen encode a delivery segment inside 56728. 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 56728 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 56728.
| ZIP | City | Distance |
|---|---|---|
| 56731 | Humboldt, MN | 9.1 mi |
| 56733 | Kennedy, MN | 11.6 mi |
| 56755 | Saint Vincent, MN | 13.9 mi |
| 56720 | Donaldson, MN | 15.6 mi |
| 58271 | Pembina, ND | 15.9 mi |
| 58225 | Drayton, ND | 15.9 mi |
| 56735 | Lancaster, MN | 18.3 mi |
| 58238 | Hamilton, ND | 18.5 mi |
| 56734 | Lake Bronson, MN | 18.7 mi |
| 56729 | Halma, MN | 19.9 mi |
| 58216 | Bathgate, ND | 21.5 mi |
| 56757 | Stephen, MN | 21.8 mi |
Questions about 56728
What is the ZIP+4 code for 56728?
56728 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 56728, you need to look up a specific street address to get them.
What city is 56728?
56728 is assigned to Hallock, Minnesota, in Kittson 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.