ZIP Code 78373

78373 is one of Texas's ZIP codes, delivering to addresses in Port Aransas, Nueces County.

City: Port Aransas
County: Nueces County
State: Texas
Prefix: 783xx

Where this code sits

78373 is part of the 783xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Port Aransas.

Port Aransas Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78373 delivers to without sharing its boundary.

361 Area code 361

ZIP codes nearest 78373

The ZIP codes whose reference points sit closest to 78373.
ZIP code	Distance	Delivers to
ZIP code 78362	9.2 mi	Ingleside, TX
ZIP code 78336	10 mi	Aransas Pass, TX
ZIP code 78335	11 mi	Aransas Pass, TX
ZIP code 78419	11 mi	Corpus Christi, TX
ZIP code 78359	15 mi	Gregory, TX
ZIP code 78374	16 mi	Portland, TX
ZIP code 78418	16 mi	Corpus Christi, TX
ZIP code 78412	16 mi	Corpus Christi, TX

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 78373, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 78373. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.