ZIP codes

ZIP codes in Cameron County, Texas

Cameron County has 17 ZIP codes. 16 lie entirely inside it and 1 are shared with neighboring counties, so part of their land and their people are elsewhere. About 426,198 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 17; With 1% or more of their land inside
Entirely inside: 16; 99% or more of their land
Shared with other counties: 1; Most with Hidalgo County (1)
Most populated ZIP: 78521; 87,380 people · Brownsville
Least populated ZIP: 78567; 323 people · Los Indios
Largest ZIP by land: 78586; 153 sq mi · San Benito

Map of the ZIP codes in Cameron County

Entirely in the county (99% or more of its land)
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 Cameron County

17 ZIP codes in Cameron County, TX, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
78520	Brownsville	64,740	100%	64,740
78521	Brownsville	87,380	100%	87,380
78526	Brownsville	60,012	100%	60,012
78535	Combes	425	100%	425
78550	Harlingen	53,335	100%	53,335
78552	Harlingen	42,332	100%	42,332
78559	La Feria	12,169	100%	12,169
78566	Brownsville	25,110	100%	25,110
78567	Los Indios	323	100%	323
78569	Yznaga	4,342	5.7%	≈ 514
78575	Brownsville	4,575	100%	4,575
78578	Brownsville	10,016	100%	10,016
78583	La Tina Ranch	5,236	100%	5,236
78586	San Benito	50,964	100%	50,964
78592	Iglesia Antigua	677	100%	677
78593	Yznaga	5,455	100%	5,455
78597	South Padre Island	2,935	100%	2,935

ZIP codes shared with other counties

These 1 ZIP codes have part of their land in another county. The first figure is the share of their land in Cameron County; then, where the rest lies.

78569 (Yznaga): 5.7% here; 80% in Willacy County and 15% in Hidalgo 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 Brownsville (6), Harlingen (2), Yznaga (2), Combes (1), Iglesia Antigua (1), and La Feria (1); 10 places in all.

All 17 start with the same three digits, 785: the prefix of the USPS sorting center that handles them.

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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