ZIP Code 78584

78584 is one of Texas's ZIP codes, delivering to addresses in Roma, Starr County.

City: Roma
County: Starr County
State: Texas
Prefix: 785xx

Where this code sits

78584 is part of the 785xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Roma.

Roma Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78584 delivers to without sharing its boundary.

956 Area code 956

ZIP codes nearest 78584

The ZIP codes whose reference points sit closest to 78584.
ZIP code	Distance	Delivers to
ZIP code 78585	9.4 mi	Salineno, TX
ZIP code 78582	12 mi	Rio Grande City, TX
ZIP code 78545	13 mi	Falcon Heights, TX
ZIP code 78547	20 mi	Garciasville, TX
ZIP code 78564	21 mi	Lopeno, TX
ZIP code 78548	24 mi	Grulla, TX
ZIP code 78595	29 mi	Sullivan City, TX
ZIP code 78565	30 mi	Los Ebanos, 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 78584, plotted from its record coordinates.

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

Scope ZIP code 78584. 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.