ZIP Code 78840

78840 is one of Texas's ZIP codes, delivering to addresses in Del Rio, Val Verde County.

City: Del Rio
County: Val Verde County
State: Texas
Prefix: 788xx

Where this code sits

78840 is part of the 788xx range, the group of codes handled by one mail processing centre. Del Rio is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Del Rio page.

Del Rio Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78840 delivers to without sharing its boundary.

830 Area code 830

ZIP codes nearest 78840

The ZIP codes whose reference points sit closest to 78840.
ZIP code	Distance	Delivers to
ZIP code 78842	2.5 mi	Del Rio, TX
ZIP code 78843	3.3 mi	Laughlin Afb, TX
ZIP code 78847	3.3 mi	Del Rio, TX
ZIP code 78841	4.9 mi	Del Rio, TX
ZIP code 78832	30 mi	Brackettville, TX
ZIP code 78837	32 mi	Comstock, TX
ZIP code 78877	38 mi	Quemado, TX
ZIP code 78852	55 mi	Eagle Pass, 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 78840, plotted from its record coordinates.

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

Scope ZIP code 78840. 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.