Aransas County ZIP Codes

Aransas County is a county of Texas.

ZIP codes: 3
Cities & towns: 2
Area codes: 1
Land area: 252 sq mi

Every ZIP code in Aransas County

783xx

The complete list of Aransas County, TX ZIP codes with the city each one delivers to.
ZIP code	City
78358	Fulton
78381	Rockport
78382	Rockport

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Aransas County

Area codes covering Aransas County

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

361 Area code 361

Where Aransas County's ZIP codes sit

Each point is the reference point of one Aransas 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 Aransas 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.