ZIP Code 78837

78837 is one of Texas's ZIP codes, delivering to addresses in Comstock, Val Verde County.

City: Comstock
County: Val Verde County
State: Texas
Prefix: 788xx

Where this code sits

78837 is part of the 788xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Comstock.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78837 delivers to without sharing its boundary.

432 Area code 432

ZIP codes nearest 78837

The ZIP codes whose reference points sit closest to 78837.
ZIP code	Distance	Delivers to
ZIP code 78871	18 mi	Langtry, TX
ZIP code 78842	31 mi	Del Rio, TX
ZIP code 78840	32 mi	Del Rio, TX
ZIP code 78841	34 mi	Del Rio, TX
ZIP code 78843	35 mi	Laughlin Afb, TX
ZIP code 78847	35 mi	Del Rio, TX
ZIP code 78851	55 mi	Dryden, TX
ZIP code 78832	59 mi	Brackettville, 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 78837, plotted from its record coordinates.

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

Scope ZIP code 78837. 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.