ZIP Code 77659

77659 is one of Texas's ZIP codes, delivering to addresses in Sour Lake, Hardin County.

City: Sour Lake
County: Hardin County
State: Texas
Prefix: 776xx

Where this code sits

77659 is part of the 776xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Sour Lake.

Sour Lake Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 77659 delivers to without sharing its boundary.

409 Area code 409

ZIP codes nearest 77659

The ZIP codes whose reference points sit closest to 77659.
ZIP code	Distance	Delivers to
ZIP code 77713	8.1 mi	Beaumont, TX
ZIP code 77613	9.6 mi	China, TX
ZIP code 77629	11 mi	Nome, TX
ZIP code 77726	11 mi	Beaumont, TX
ZIP code 77708	13 mi	Beaumont, TX
ZIP code 77657	13 mi	Lumberton, TX
ZIP code 77706	13 mi	Beaumont, TX
ZIP code 77707	13 mi	Beaumont, 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 77659, plotted from its record coordinates.

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

Scope ZIP code 77659. 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.