ZIP Code 54821 — Cable, WI
54821 is a standard (street delivery) ZIP code serving Cable, 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 54821 at a glance
| ZIP code | 54821 |
|---|---|
| Primary city | Cable |
| State | Wisconsin (WI) |
| County | Bayfield FIPS 55007 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,625 |
| Coordinates | 46.224280, -91.165080 |
How ZIP+4 works in 54821
The four digits after the hyphen encode a delivery segment inside 54821. 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 54821 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 54821.
| ZIP | City | Distance |
|---|---|---|
| 54839 | Grand View, WI | 9.2 mi |
| 54832 | Drummond, WI | 10.6 mi |
| 54517 | Clam Lake, WI | 13.4 mi |
| 54856 | Mason, WI | 14.8 mi |
| 54843 | Hayward, WI | 15.1 mi |
| 54855 | Marengo, WI | 18.5 mi |
| 54546 | Mellen, WI | 22.2 mi |
| 54846 | High Bridge, WI | 23.5 mi |
| 54527 | Glidden, WI | 26 mi |
| 54847 | Iron River, WI | 26.4 mi |
| 54873 | Solon Springs, WI | 26.5 mi |
| 54806 | Ashland, WI | 26.9 mi |
Questions about 54821
What is the ZIP+4 code for 54821?
54821 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 54821, you need to look up a specific street address to get them.
What city is 54821?
54821 is assigned to Cable, 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.