ZIP Code 78545

78545 is one of Texas's ZIP codes, delivering to addresses in Falcon Heights, Starr County.

City: Falcon Heights
County: Starr County
State: Texas
Prefix: 785xx

Where this code sits

78545 is part of the 785xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Falcon Heights.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78545 delivers to without sharing its boundary.

956 Area code 956

ZIP codes nearest 78545

The ZIP codes whose reference points sit closest to 78545.
ZIP code	Distance	Delivers to
ZIP code 78585	3.4 mi	Salineno, TX
ZIP code 78564	10 mi	Lopeno, TX
ZIP code 78584	13 mi	Roma, TX
ZIP code 78582	23 mi	Rio Grande City, TX
ZIP code 78076	24 mi	Zapata, TX
ZIP code 78360	27 mi	Guerra, TX
ZIP code 78547	32 mi	Garciasville, TX
ZIP code 78548	36 mi	Grulla, 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 78545, plotted from its record coordinates.

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

Scope ZIP code 78545. 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.