ZIP Code 77428

77428 is one of Texas's ZIP codes, delivering to addresses in Collegeport, Matagorda County.

City: Collegeport
County: Matagorda County
State: Texas
Prefix: 774xx

Where this code sits

77428 is part of the 774xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Collegeport.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 77428 delivers to without sharing its boundary.

361 Area code 361

ZIP codes nearest 77428

The ZIP codes whose reference points sit closest to 77428.
ZIP code	Distance	Delivers to
ZIP code 77465	2.5 mi	Palacios, TX
ZIP code 77419	10 mi	Blessing, TX
ZIP code 77440	11 mi	Elmaton, TX
ZIP code 77457	13 mi	Matagorda, TX
ZIP code 77961	14 mi	Francitas, TX
ZIP code 77458	15 mi	Midfield, TX
ZIP code 77456	17 mi	Markham, TX
ZIP code 77483	18 mi	Wadsworth, 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 77428, plotted from its record coordinates.

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

Scope ZIP code 77428. 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.