Wausau Wisconsin ZIP Codes
Wausau holds 3 ZIP codes, all inside one county and one postal prefix.
Every ZIP code in Wausau
| ZIP code | County |
|---|---|
| 54401 | Marathon County |
| 54402 | Marathon County |
| 54403 | Marathon 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Wausau codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Wausau. 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 Wausau ZIP code begins 544. Those first three digits identify the sectional center facility that processes mail for this part of Wisconsin. Statewide that range covers 86 ZIP codes, so Wausau accounts for 3% of it.
Every Wisconsin ZIP prefix and the region it covers →
Area codes covering Wausau
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 Wausau occupies.
Wausau Wisconsin area codes in full →
Where Wausau's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Wausau
| City | Distance | ZIP codes |
|---|---|---|
| Schofield Wisconsin ZIP codes | 3.6 mi | 1 ZIP code |
| Rothschild Wisconsin ZIP codes | 6.2 mi | 1 ZIP code |
| Marathon Wisconsin ZIP codes | 10 mi | 1 ZIP code |
| Mosinee Wisconsin ZIP codes | 12 mi | 1 ZIP code |
| Merrill Wisconsin ZIP codes | 15 mi | 1 ZIP code |
| Edgar Wisconsin ZIP codes | 16 mi | 1 ZIP code |
| Hatley Wisconsin ZIP codes | 16 mi | 1 ZIP code |
| Birnamwood Wisconsin ZIP codes | 22 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.