ZIP Code 79121

79121 is one of Texas's ZIP codes, delivering to addresses in Amarillo, Randall County.

City: Amarillo
County: Randall County
State: Texas
Prefix: 791xx

Where this code sits

79121 is part of the 791xx range, the group of codes handled by one mail processing centre. Amarillo is served by 27 ZIP codes in total; the full list, with the county each falls in, is on the Amarillo page.

Amarillo Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 79121 delivers to without sharing its boundary.

806 Area code 806

ZIP codes nearest 79121

The ZIP codes whose reference points sit closest to 79121.
ZIP code	Distance	Delivers to
ZIP code 79109	2.3 mi	Amarillo, TX
ZIP code 79106	2.6 mi	Amarillo, TX
ZIP code 79110	3.7 mi	Amarillo, TX
ZIP code 79102	4.8 mi	Amarillo, TX
ZIP code 79101	5.3 mi	Amarillo, TX
ZIP code 79159	6.5 mi	Amarillo, TX
ZIP code 79116	6.6 mi	Amarillo, TX
ZIP code 79124	7.0 mi	Amarillo, 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 79121, plotted from its record coordinates.

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

Scope ZIP code 79121. 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.