Portage County ZIP Codes

Portage County is a county of Wisconsin.

ZIP codes
12
Cities & towns
10
Area codes
2
Land area
801 sq mi

Every ZIP code in Portage County

544xx–549xx
The complete list of Portage County, WI ZIP codes with the city each one delivers to.
ZIP codeCity
54406Amherst
54407Amherst Junction
54423Custer
54443Junction City
54458Nelsonville
54467Plover
54473Rosholt
54481Stevens Point
54482Stevens Point
54492Stevens Point
54909Almond
54921Bancroft

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Portage County

A further 2 places in Portage County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Portage County

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

Where Portage County's ZIP codes sit

Each point is the reference point of one Portage 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 Portage 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 . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.