Onalaska Wisconsin ZIP Codes
Onalaska holds a single ZIP code.
Every ZIP code in Onalaska
| ZIP code | County |
|---|---|
| 54650 | La Crosse County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Onalaska codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Onalaska. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Onalaska ZIP code begins 546. Those first three digits identify the sectional center facility that processes mail for this part of Wisconsin. Statewide that range covers 59 ZIP codes, so Onalaska accounts for 2% of it.
Every Wisconsin ZIP prefix and the region it covers →
Area codes covering Onalaska
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Onalaska occupies.
Onalaska Wisconsin area codes in full →
Where Onalaska's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Onalaska
| City | Distance | ZIP codes |
|---|---|---|
| La Crosse Wisconsin ZIP codes | 4.6 mi | 3 ZIP codes |
| West Salem Wisconsin ZIP codes | 5.9 mi | 1 ZIP code |
| Holmen Wisconsin ZIP codes | 6.4 mi | 1 ZIP code |
| Bangor Wisconsin ZIP codes | 11 mi | 1 ZIP code |
| Trempealeau Wisconsin ZIP codes | 14 mi | 1 ZIP code |
| Rockland Wisconsin ZIP codes | 14 mi | 1 ZIP code |
| Galesville Wisconsin ZIP codes | 16 mi | 1 ZIP code |
| Stoddard Wisconsin ZIP codes | 16 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.