Vernon County ZIP Codes

Vernon County is a county of Wisconsin.

ZIP codes: 12
Cities & towns: 12
Area codes: 2
Land area: 792 sq mi

Every ZIP code in Vernon County

546xx

The complete list of Vernon County, WI ZIP codes with the city each one delivers to.
ZIP code	City
54621	Chaseburg
54623	Coon Valley
54624	De Soto
54632	Genoa
54634	Hillsboro
54639	La Farge
54651	Ontario
54652	Readstown
54658	Stoddard
54664	Viola
54665	Viroqua
54667	Westby

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Vernon County codes above are listed without a column we would have to invent.

Cities and towns in Vernon County

Area codes covering Vernon County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

Where Vernon County's ZIP codes sit

Each point is the reference point of one Vernon County ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope every ZIP code recorded in Vernon County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.