ZIP Code 78056

78056 is one of Texas's ZIP codes, delivering to addresses in Mico, Medina County.

City: Mico
County: Medina County
State: Texas
Prefix: 780xx

Where this code sits

78056 is part of the 780xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mico.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78056 delivers to without sharing its boundary.

830 Area code 830

ZIP codes nearest 78056

The ZIP codes whose reference points sit closest to 78056.
ZIP code	Distance	Delivers to
ZIP code 78066	6.6 mi	Rio Medina, TX
ZIP code 78063	9.5 mi	Pipe Creek, TX
ZIP code 78254	11 mi	San Antonio, TX
ZIP code 78023	12 mi	Helotes, TX
ZIP code 78253	12 mi	San Antonio, TX
ZIP code 78009	13 mi	Castroville, TX
ZIP code 78003	15 mi	Bandera, TX
ZIP code 78250	16 mi	San Antonio, 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 78056, plotted from its record coordinates.

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

Scope ZIP code 78056. 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.