Frontier County ZIP Codes

Frontier County is a county of Nebraska.

ZIP codes: 5
Cities & towns: 5
Area codes: 1
Land area: 975 sq mi

Every ZIP code in Frontier County

690xx

The complete list of Frontier County, NE ZIP codes with the city each one delivers to.
ZIP code	City
69025	Curtis
69028	Eustis
69038	Maywood
69039	Moorefield
69042	Stockville

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Frontier County

Area codes covering Frontier County

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

308 Area code 308

Where Frontier County's ZIP codes sit

Each point is the reference point of one Frontier 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 Frontier 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.