ZIP Code 56630 — Blackduck, MN
56630 is a standard (street delivery) ZIP code serving Blackduck, Minnesota, in Beltrami 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 56630 at a glance
| ZIP code | 56630 |
|---|---|
| Primary city | Blackduck |
| State | Minnesota (MN) |
| County | Beltrami FIPS 27007 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,180 |
| Coordinates | 47.744320, -94.498520 |
How ZIP+4 works in 56630
The four digits after the hyphen encode a delivery segment inside 56630. 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 56630 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 56630.
| ZIP | City | Distance |
|---|---|---|
| 56647 | Hines, MN | 6.9 mi |
| 56683 | Tenstrike, MN | 11.8 mi |
| 56663 | Pennington, MN | 17 mi |
| 56681 | Squaw Lake, MN | 17.7 mi |
| 56650 | Kelliher, MN | 17.8 mi |
| 56661 | Northome, MN | 18 mi |
| 56670 | Redby, MN | 18.7 mi |
| 56667 | Puposky, MN | 20.6 mi |
| 56660 | Mizpah, MN | 21.6 mi |
| 56601 | Bemidji, MN | 22.9 mi |
| 56659 | Max, MN | 23.8 mi |
| 56666 | Ponemah, MN | 25.4 mi |
Questions about 56630
What is the ZIP+4 code for 56630?
56630 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 56630, you need to look up a specific street address to get them.
What city is 56630?
56630 is assigned to Blackduck, Minnesota, in Beltrami 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.