ZIP Code 54661 — Trempealeau, WI
54661 is a standard (street delivery) ZIP code serving Trempealeau, Wisconsin, in Trempealeau 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 54661 at a glance
| ZIP code | 54661 |
|---|---|
| Primary city | Trempealeau |
| State | Wisconsin (WI) |
| County | Trempealeau FIPS 55121 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,806 |
| Coordinates | 44.059430, -91.471330 |
How ZIP+4 works in 54661
The four digits after the hyphen encode a delivery segment inside 54661. 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 54661 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 54661.
| ZIP | City | Distance |
|---|---|---|
| 54625 | Dodge, WI | 5.7 mi |
| 54630 | Galesville, WI | 6.4 mi |
| 55987 | Winona, MN | 9.5 mi |
| 55925 | Dakota, MN | 10.3 mi |
| 54629 | Fountain City, WI | 11.9 mi |
| 54636 | Holmen, WI | 12.6 mi |
| 54612 | Arcadia, WI | 13.1 mi |
| 54627 | Ettrick, WI | 13.9 mi |
| 55959 | Minnesota City, MN | 15.9 mi |
| 54650 | Onalaska, WI | 16 mi |
| 55947 | La Crescent, MN | 17.2 mi |
| 54603 | La Crosse, WI | 17.8 mi |
Questions about 54661
What is the ZIP+4 code for 54661?
54661 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 54661, you need to look up a specific street address to get them.
What city is 54661?
54661 is assigned to Trempealeau, Wisconsin, in Trempealeau 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.