ZIP Code 77880

77880 is one of Texas's ZIP codes, delivering to addresses in Washington, Washington County.

City: Washington
County: Washington County
State: Texas
Prefix: 778xx

Where this code sits

77880 is part of the 778xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Washington.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 77880 delivers to without sharing its boundary.

ZIP codes nearest 77880

The ZIP codes whose reference points sit closest to 77880.
ZIP code	Distance	Delivers to
ZIP code 77866	9.1 mi	Millican, TX
ZIP code 77426	9.3 mi	Chappell Hill, TX
ZIP code 77868	10 mi	Navasota, TX
ZIP code 77833	14 mi	Brenham, TX
ZIP code 77845	15 mi	College Station, TX
ZIP code 77834	15 mi	Brenham, TX
ZIP code 77881	16 mi	Wellborn, TX
ZIP code 77445	18 mi	Hempstead, 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 77880, plotted from its record coordinates.

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

Scope ZIP code 77880. 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.