ZIP Code 54479 — Spencer, WI
54479 is a standard (street delivery) ZIP code serving Spencer, Wisconsin, in Clark 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 54479 at a glance
| ZIP code | 54479 |
|---|---|
| Primary city | Spencer |
| State | Wisconsin (WI) |
| County | Clark FIPS 55019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,630 |
| Coordinates | 44.756880, -90.325250 |
How ZIP+4 works in 54479
The four digits after the hyphen encode a delivery segment inside 54479. 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 54479 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 54479.
| ZIP | City | Distance |
|---|---|---|
| 54488 | Unity, WI | 6 mi |
| 54446 | Loyal, WI | 7.2 mi |
| 54421 | Colby, WI | 9.9 mi |
| 54420 | Chili, WI | 10.2 mi |
| 54449 | Marshfield, WI | 10.3 mi |
| 54484 | Stratford, WI | 12.4 mi |
| 54441 | Hewitt, WI | 13.3 mi |
| 54405 | Abbotsford, WI | 14.4 mi |
| 54437 | Greenwood, WI | 15.4 mi |
| 54436 | Granton, WI | 15.7 mi |
| 54460 | Owen, WI | 16.7 mi |
| 54422 | Curtiss, WI | 16.8 mi |
Questions about 54479
What is the ZIP+4 code for 54479?
54479 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 54479, you need to look up a specific street address to get them.
What city is 54479?
54479 is assigned to Spencer, Wisconsin, in Clark 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.