ZIP Code 77979

77979 is one of Texas's ZIP codes, delivering to addresses in Port Lavaca, Calhoun County.

City: Port Lavaca
County: Calhoun County
State: Texas
Prefix: 779xx

Where this code sits

77979 is part of the 779xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Port Lavaca.

Port Lavaca Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 77979 delivers to without sharing its boundary.

361 Area code 361

ZIP codes nearest 77979

The ZIP codes whose reference points sit closest to 77979.
ZIP code	Distance	Delivers to
ZIP code 77978	6.4 mi	Point Comfort, TX
ZIP code 77969	12 mi	La Salle, TX
ZIP code 77977	14 mi	Placedo, TX
ZIP code 77983	14 mi	Seadrift, TX
ZIP code 77991	14 mi	Vanderbilt, TX
ZIP code 77971	15 mi	Lolita, TX
ZIP code 77951	17 mi	Bloomington, TX
ZIP code 77982	17 mi	Port O Connor, 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 77979, plotted from its record coordinates.

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

Scope ZIP code 77979. 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.