ZIP Code 54621 — Chaseburg, WI
54621 is a standard (street delivery) ZIP code serving Chaseburg, Wisconsin, in Vernon 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 54621 at a glance
| ZIP code | 54621 |
|---|---|
| Primary city | Chaseburg |
| State | Wisconsin (WI) |
| County | Vernon FIPS 55123 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,319 |
| Coordinates | 43.656320, -91.081990 |
How ZIP+4 works in 54621
The four digits after the hyphen encode a delivery segment inside 54621. 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 54621 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 54621.
| ZIP | City | Distance |
|---|---|---|
| 54623 | Coon Valley, WI | 5.6 mi |
| 54658 | Stoddard, WI | 5.7 mi |
| 54632 | Genoa, WI | 7.2 mi |
| 54601 | La Crosse, WI | 10.5 mi |
| 54667 | Westby, WI | 11 mi |
| 55919 | Brownsville, MN | 11 mi |
| 54665 | Viroqua, WI | 11.7 mi |
| 54624 | De Soto, WI | 13.5 mi |
| 54653 | Rockland, WI | 14.4 mi |
| 55941 | Hokah, MN | 14.4 mi |
| 54603 | La Crosse, WI | 16.2 mi |
| 54619 | Cashton, WI | 16.6 mi |
Questions about 54621
What is the ZIP+4 code for 54621?
54621 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 54621, you need to look up a specific street address to get them.
What city is 54621?
54621 is assigned to Chaseburg, Wisconsin, in Vernon 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.