ZIP Code 54891 — Washburn, WI
54891 is a standard (street delivery) ZIP code serving Washburn, Wisconsin, in Bayfield 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 54891 at a glance
| ZIP code | 54891 |
|---|---|
| Primary city | Washburn |
| State | Wisconsin (WI) |
| County | Bayfield FIPS 55007 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,297 |
| Coordinates | 46.697270, -90.968800 |
How ZIP+4 works in 54891
The four digits after the hyphen encode a delivery segment inside 54891. 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 54891 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 54891.
| ZIP | City | Distance |
|---|---|---|
| 54827 | Cornucopia, WI | 9.6 mi |
| 54814 | Bayfield, WI | 11.3 mi |
| 54806 | Ashland, WI | 11.7 mi |
| 54844 | Herbster, WI | 13.2 mi |
| 54861 | Odanah, WI | 16.8 mi |
| 54856 | Mason, WI | 19.2 mi |
| 54865 | Port Wing, WI | 19.5 mi |
| 54847 | Iron River, WI | 22.2 mi |
| 54850 | La Pointe, WI | 22.5 mi |
| 54855 | Marengo, WI | 23 mi |
| 54846 | High Bridge, WI | 24.9 mi |
| 54839 | Grand View, WI | 25 mi |
Questions about 54891
What is the ZIP+4 code for 54891?
54891 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 54891, you need to look up a specific street address to get them.
What city is 54891?
54891 is assigned to Washburn, Wisconsin, in Bayfield 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.