ZIP Code 76666

76666 is one of Texas's ZIP codes, delivering to addresses in Mertens, Hill County.

City: Mertens
County: Hill County
State: Texas
Prefix: 766xx

Where this code sits

76666 is part of the 766xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mertens.

Mertens Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 76666 delivers to without sharing its boundary.

ZIP codes nearest 76666

The ZIP codes whose reference points sit closest to 76666.
ZIP code	Distance	Delivers to
ZIP code 76650	2.9 mi	Irene, TX
ZIP code 76628	3.9 mi	Brandon, TX
ZIP code 76631	5.6 mi	Bynum, TX
ZIP code 76660	7.2 mi	Malone, TX
ZIP code 76641	7.6 mi	Frost, TX
ZIP code 76670	9.1 mi	Milford, TX
ZIP code 76651	11 mi	Italy, TX
ZIP code 76626	12 mi	Blooming Grove, 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 76666, plotted from its record coordinates.

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

Scope ZIP code 76666. 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.