ZIP Code 78370

78370 is one of Texas's ZIP codes, delivering to addresses in Odem, San Patricio County.

City: Odem
County: San Patricio County
State: Texas
Prefix: 783xx

Where this code sits

78370 is part of the 783xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Odem.

Odem Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78370 delivers to without sharing its boundary.

361 Area code 361

ZIP codes nearest 78370

The ZIP codes whose reference points sit closest to 78370.
ZIP code	Distance	Delivers to
ZIP code 78352	6.1 mi	Edroy, TX
ZIP code 78410	6.6 mi	Corpus Christi, TX
ZIP code 78387	7.6 mi	Sinton, TX
ZIP code 78409	9.4 mi	Corpus Christi, TX
ZIP code 78390	12 mi	Taft, TX
ZIP code 78380	12 mi	Robstown, TX
ZIP code 78406	13 mi	Corpus Christi, TX
ZIP code 78407	13 mi	Corpus Christi, 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 78370, plotted from its record coordinates.

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

Scope ZIP code 78370. 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.