ZIP Code 54650 — Onalaska, WI
54650 is a standard (street delivery) ZIP code serving Onalaska, Wisconsin, in La Crosse 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 54650 at a glance
| ZIP code | 54650 |
|---|---|
| Primary city | Onalaska |
| State | Wisconsin (WI) |
| County | La Crosse FIPS 55063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 25,304 |
| Coordinates | 43.909900, -91.224240 |
How ZIP+4 works in 54650
The four digits after the hyphen encode a delivery segment inside 54650. 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 54650 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 54650.
| ZIP | City | Distance |
|---|---|---|
| 54603 | La Crosse, WI | 3.8 mi |
| 54636 | Holmen, WI | 6.7 mi |
| 54669 | West Salem, WI | 6.7 mi |
| 54601 | La Crosse, WI | 8.4 mi |
| 55947 | La Crescent, MN | 8.9 mi |
| 55925 | Dakota, MN | 12 mi |
| 54644 | Mindoro, WI | 12.3 mi |
| 54614 | Bangor, WI | 12.5 mi |
| 55941 | Hokah, MN | 14.3 mi |
| 54630 | Galesville, WI | 14.9 mi |
| 54623 | Coon Valley, WI | 15.8 mi |
| 54661 | Trempealeau, WI | 16 mi |
Questions about 54650
What is the ZIP+4 code for 54650?
54650 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 54650, you need to look up a specific street address to get them.
What city is 54650?
54650 is assigned to Onalaska, Wisconsin, in La Crosse 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.