ZIP Code 54720 — Altoona, WI
54720 is a standard (street delivery) ZIP code serving Altoona, Wisconsin, in Eau Claire 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 54720 at a glance
| ZIP code | 54720 |
|---|---|
| Primary city | Altoona |
| State | Wisconsin (WI) |
| County | Eau Claire FIPS 55035 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 8,947 |
| Coordinates | 44.805110, -91.436460 |
How ZIP+4 works in 54720
The four digits after the hyphen encode a delivery segment inside 54720. 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 54720 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 54720.
| ZIP | City | Distance |
|---|---|---|
| 54703 | Eau Claire, WI | 4.5 mi |
| 54701 | Eau Claire, WI | 5.6 mi |
| 54742 | Fall Creek, WI | 8.5 mi |
| 54729 | Chippewa Falls, WI | 9.9 mi |
| 54739 | Elk Mound, WI | 13.5 mi |
| 54738 | Eleva, WI | 14.7 mi |
| 54727 | Cadott, WI | 17.2 mi |
| 54722 | Augusta, WI | 17.6 mi |
| 54770 | Strum, WI | 17.8 mi |
| 54755 | Mondovi, WI | 19.8 mi |
| 54730 | Colfax, WI | 20.3 mi |
| 54748 | Jim Falls, WI | 20.7 mi |
Questions about 54720
What is the ZIP+4 code for 54720?
54720 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 54720, you need to look up a specific street address to get them.
What city is 54720?
54720 is assigned to Altoona, Wisconsin, in Eau Claire 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.