ZIP codes

ZIP codes in Randall County, Texas

Randall County has 15 ZIP codes. 6 lie entirely inside it and 9 are shared with neighboring counties, so part of their land and their people are elsewhere. About 147,379 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 15; With 1% or more of their land inside
Entirely inside: 6; 99% or more of their land
Shared with other counties: 9; Most with Potter County (7)
Most populated ZIP: 79109; 43,578 people · Amarillo
Least populated ZIP: 79016; 310 people · Canyon; 2 more with nobody living there
Largest ZIP by land: 79015; 328 sq mi · Canyon

Map of the ZIP codes in Randall County

Entirely in the county (99% or more of its land)
Shared, mostly in this county
Shared, mostly in other counties
Neighboring counties

Open in the interactive tool

Each area is a ZIP code with its number where it fits. Hover over one to see its name.

All ZIP codes in Randall County

15 ZIP codes in Randall County, TX, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
79012	—	0	100%	0
79015	Canyon	23,765	100%	23,765
79016	Canyon	310	100%	310
79019	Claude	1,671	3.0%	≈ 730
79042	Happy	1,218	48%	≈ 1,003
79091	Umbarger	0	100%	0
79098	Wildorado	576	15%	≈ 446
79103	Amarillo	11,306	50%	≈ 4,405
79106	Amarillo	26,161	9.7%	≈ 4,121
79109	Amarillo	43,578	79%	≈ 37,446
79110	Amarillo	16,994	100%	16,994
79118	Amarillo	28,107	93%	≈ 24,950
79119	Amarillo	24,907	100%	24,907
79121	Amarillo	6,437	84%	≈ 6,166
79124	Amarillo	12,019	2.5%	≈ 2,136

ZIP codes shared with other counties

These 9 ZIP codes have part of their land in another county. The first figure is the share of their land in Randall County; then, where the rest lies.

79019 (Claude): 3.0% here; 97% in Armstrong County.
79042 (Happy): 48% here; 23% in Castro County, 22% in Swisher County, and 6.7% in Armstrong County.
79098 (Wildorado): 15% here; 46% in Deaf Smith County, 36% in Oldham County, and 2.2% in Potter County.
79103 (Amarillo): 50% here; 50% in Potter County.
79106 (Amarillo): 9.7% here; 90% in Potter County.
79109 (Amarillo): 79% here; 21% in Potter County.
79118 (Amarillo): 93% here; 6.5% in Potter County.
79121 (Amarillo): 84% here; 16% in Potter County.
79124 (Amarillo): 2.5% here; 98% in Potter County.

Cities and prefixes

By main city (the city, town or CDP each ZIP shares the most land with), the ones with the most are Amarillo (8), Canyon (2), Claude (1), Happy (1), Umbarger (1), and Wildorado (1).

They start with 2 different three-digit prefixes, one per USPS sorting center: 790 and 791.

Neighboring counties

Each one with its ZIP codes. Those without a page of their own open in the tool.

Tools for this county

ZIP codes by county or city The same ZIP codes on an interactive map, with the list as CSV or to copy County map with cities Its cities, towns and CDPs with their population ZIP codes in a radius The ZIP codes within 10 miles of its center, or any distance you like

Sources

U.S. Census Bureau, 2020 ZCTA to County, ZCTA to Place and ZCTA to Census Tract Relationship Files (and the 2022 County Subdivision to ZCTA file for Connecticut). Public domain.
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table B01003 (population of each ZIP code, census tract and Connecticut town). Public domain.
U.S. Census Bureau, Vintage 2025 Population Estimates (county population) and 2025 Gazetteer Files (land area and interior point of each ZIP code). Public domain.
U.S. Census Bureau, Cartographic Boundary Files: ZCTAs 2020 and counties 2025, 1:500,000; county adjacency file 2025. Public domain.

How we count. ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas (ZCTAs), the areas it draws to match USPS ZIP codes; ZIPs with no area of their own (PO boxes, single buildings) aren’t included. A ZIP can cross county lines: “Land in the county” is the exact share of its land inside, from the Census relationship files. “Residents in the county” is the whole ZIP for those entirely inside; for shared ones it’s an estimate, spreading the people of each census tract over the land it shares with the ZIP. Population: ACS 2020–2024. Methodology.

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