Cassville Wisconsin ZIP Codes
Cassville holds a single ZIP code.
Every ZIP code in Cassville
| ZIP code | County |
|---|---|
| 53806 | Grant 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Cassville codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Cassville. 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 Cassville ZIP code begins 538. Those first three digits identify the sectional center facility that processes mail for this part of Wisconsin. Statewide that range covers 22 ZIP codes, so Cassville accounts for 5% of it.
Every Wisconsin ZIP prefix and the region it covers →
Area codes covering Cassville
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 Cassville occupies.
Cassville Wisconsin area codes in full →
Where Cassville's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Cassville
| City | Distance | ZIP codes |
|---|---|---|
| Bloomington Wisconsin ZIP codes | 13 mi | 1 ZIP code |
| Bagley Wisconsin ZIP codes | 14 mi | 1 ZIP code |
| Potosi Wisconsin ZIP codes | 14 mi | 1 ZIP code |
| Patch Grove Wisconsin ZIP codes | 16 mi | 1 ZIP code |
| Lancaster Wisconsin ZIP codes | 17 mi | 1 ZIP code |
| Mount Hope Wisconsin ZIP codes | 19 mi | 1 ZIP code |
| Dickeyville Wisconsin ZIP codes | 21 mi | 1 ZIP code |
| Prairie Du Chien Wisconsin ZIP codes | 24 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.