ZIP Code 77491

77491 is one of Texas's ZIP codes, delivering to addresses in Katy, Harris County.

City: Katy
County: Harris County
State: Texas
Prefix: 774xx

Where this code sits

77491 is part of the 774xx range, the group of codes handled by one mail processing centre. Katy is served by 6 ZIP codes in total; the full list, with the county each falls in, is on the Katy page.

Katy Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 77491 delivers to without sharing its boundary.

ZIP codes nearest 77491

The ZIP codes whose reference points sit closest to 77491.
ZIP code	Distance	Delivers to
ZIP code 77492	0.0 mi	Katy, TX
ZIP code 77494	3.2 mi	Katy, TX
ZIP code 77493	5.7 mi	Katy, TX
ZIP code 77450	6.2 mi	Katy, TX
ZIP code 77449	6.2 mi	Katy, TX
ZIP code 77441	6.2 mi	Fulshear, TX
ZIP code 77094	6.9 mi	Houston, TX
ZIP code 77413	8.4 mi	Barker, 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 77491, plotted from its record coordinates.

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

Scope ZIP code 77491. 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.