ZIP Code 78574

78574 is one of Texas's ZIP codes, delivering to addresses in Mission, Willacy County.

City: Mission
County: Willacy County
State: Texas
Prefix: 785xx

Where this code sits

78574 is part of the 785xx range, the group of codes handled by one mail processing centre. Mission is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Mission page.

Mission Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78574 delivers to without sharing its boundary.

956 Area code 956

ZIP codes nearest 78574

The ZIP codes whose reference points sit closest to 78574.
ZIP code	Distance	Delivers to
ZIP code 78573	4.6 mi	Mission, TX
ZIP code 78576	5.5 mi	Penitas, TX
ZIP code 78572	7.6 mi	Mission, TX
ZIP code 78560	8.4 mi	La Joya, TX
ZIP code 78504	9.7 mi	Mcallen, TX
ZIP code 78541	10 mi	Edinburg, TX
ZIP code 78501	11 mi	Mcallen, TX
ZIP code 78502	11 mi	Mcallen, 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 78574, plotted from its record coordinates.

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

Scope ZIP code 78574. 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.