ZIP Codes in La Crosse, WI
La Crosse uses 2 ZIP codes, all in La Crosse County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 2 La Crosse ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 54601 | standard | La Crosse | 50,397 |
| 54603 | standard | La Crosse | 13,738 |
Finding a ZIP+4 in La Crosse
Knowing which of these 2 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same La Crosse street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
Upload a CSV of La Crosse addresses and download it complete.