Palo Alto County ZIP Codes

Palo Alto County is a county of Iowa.

ZIP codes: 8
Cities & towns: 8
Area codes: 2
Land area: 564 sq mi

Every ZIP code in Palo Alto County

505xx–513xx

The complete list of Palo Alto County, IA ZIP codes with the city each one delivers to.
ZIP code	City
50515	Ayrshire
50527	Curlew
50528	Cylinder
50536	Emmetsburg
50562	Mallard
50597	West Bend
51342	Graettinger
51358	Ruthven

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Palo Alto County

Area codes covering Palo Alto County

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

Where Palo Alto County's ZIP codes sit

Each point is the reference point of one Palo Alto 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 Palo Alto 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.