Grantsburg Wisconsin ZIP Codes
Grantsburg holds a single ZIP code.
Every ZIP code in Grantsburg
| ZIP code | County |
|---|---|
| 54840 | Burnett 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Grantsburg codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Grantsburg. 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 Grantsburg ZIP code begins 548. Those first three digits identify the sectional center facility that processes mail for this part of Wisconsin. Statewide that range covers 66 ZIP codes, so Grantsburg accounts for 2% of it.
Every Wisconsin ZIP prefix and the region it covers →
Area codes covering Grantsburg
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 Grantsburg occupies.
Grantsburg Wisconsin area codes in full →
Where Grantsburg's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Grantsburg
| City | Distance | ZIP codes |
|---|---|---|
| Frederic Wisconsin ZIP codes | 14 mi | 1 ZIP code |
| Siren Wisconsin ZIP codes | 14 mi | 1 ZIP code |
| Webster Wisconsin ZIP codes | 17 mi | 1 ZIP code |
| Luck Wisconsin ZIP codes | 18 mi | 1 ZIP code |
| Milltown Wisconsin ZIP codes | 20 mi | 1 ZIP code |
| Centuria Wisconsin ZIP codes | 24 mi | 1 ZIP code |
| Balsam Lake Wisconsin ZIP codes | 25 mi | 1 ZIP code |
| Dresser Wisconsin ZIP codes | 29 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.