ZIP Code 76645

76645 is one of Texas's ZIP codes, delivering to addresses in Hillsboro, Hill County.

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

Where this code sits

76645 is part of the 766xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hillsboro.

Hillsboro Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 76645 delivers to without sharing its boundary.

ZIP codes nearest 76645

The ZIP codes whose reference points sit closest to 76645.
ZIP code	Distance	Delivers to
ZIP code 76631	8.1 mi	Bynum, TX
ZIP code 76621	9.1 mi	Abbott, TX
ZIP code 76628	9.6 mi	Brandon, TX
ZIP code 76055	10 mi	Itasca, TX
ZIP code 76622	12 mi	Aquilla, TX
ZIP code 76636	13 mi	Covington, TX
ZIP code 76666	13 mi	Mertens, TX
ZIP code 76670	13 mi	Milford, 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 76645, plotted from its record coordinates.

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

Scope ZIP code 76645. 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.