Every ZIP code in Eau Claire County

547xx

The complete list of Eau Claire County, WI ZIP codes with the city each one delivers to.
ZIP code	City
54701	Eau Claire
54702	Eau Claire
54703	Eau Claire
54720	Altoona
54722	Augusta
54741	Fairchild
54742	Fall Creek

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Eau Claire County

Area codes covering Eau Claire County

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

Where Eau Claire County's ZIP codes sit

Each point is the reference point of one Eau Claire 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 Eau Claire 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.