ZIP Code 56518 — Bluffton, MN
56518 is a standard (street delivery) ZIP code serving Bluffton, Minnesota, in Otter Tail 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 56518 at a glance
| ZIP code | 56518 |
|---|---|
| Primary city | Bluffton |
| State | Minnesota (MN) |
| County | Otter Tail FIPS 27111 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 494 |
| Coordinates | 46.489260, -95.245060 |
How ZIP+4 works in 56518
The four digits after the hyphen encode a delivery segment inside 56518. 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 56518 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 56518.
| ZIP | City | Distance |
|---|---|---|
| 56482 | Wadena, MN | 5.1 mi |
| 56567 | New York Mills, MN | 7.1 mi |
| 56527 | Deer Creek, MN | 8.7 mi |
| 56453 | Hewitt, MN | 12.7 mi |
| 56571 | Ottertail, MN | 14.4 mi |
| 56481 | Verndale, MN | 14.8 mi |
| 56551 | Henning, MN | 15.3 mi |
| 56477 | Sebeka, MN | 15.9 mi |
| 56573 | Perham, MN | 17 mi |
| 56434 | Aldrich, MN | 18.1 mi |
| 56437 | Bertha, MN | 18.8 mi |
| 56464 | Menahga, MN | 20.2 mi |
Questions about 56518
What is the ZIP+4 code for 56518?
56518 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 56518, you need to look up a specific street address to get them.
What city is 56518?
56518 is assigned to Bluffton, Minnesota, in Otter Tail 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.