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County ZIP codes · Texas · FIPS 48061

Cameron County, TX ZIP Codes

Cameron County, Texas has 22 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 17 residential and 5 for PO boxes or a single organization. 16 of the residential ones lie mainly in Cameron County and 1 mainly in a neighboring county; 1 cross the county line. Median household income ranges from $44,509 in 78521 (Brownsville) to $71,765 in 78575 (Olmito) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Cameron County?

78520 · Brownsville: $50k78521 · Brownsville: $45k78526 · Brownsville: $71k78535 · Combes: $39k78550 · Harlingen: $49k78552 · Harlingen: $70k78559 · La Feria: $49k78566 · Los Fresnos: $60k78567 · Los Indios: –78569 · Lyford: $59k78575 · Olmito: $72k78578 · Port Isabel: $52k78583 · Rio Hondo: $52k78586 · San Benito: $46k78592 · Santa Maria: –78593 · Santa Rosa: $49k78597 · South Padre Island: $68k785867852178566785837856978597785507857878552785207852678593785597857578520 · Brownsville: $50k78521 · Brownsville: $45k78526 · Brownsville: $71k78535 · Combes: $39k78550 · Harlingen: $49k78552 · Harlingen: $70k78559 · La Feria: $49k78566 · Los Fresnos: $60k78567 · Los Indios: –78569 · Lyford: $59k78575 · Olmito: $72k78578 · Port Isabel: $52k78583 · Rio Hondo: $52k78586 · San Benito: $46k78592 · Santa Maria: –78593 · Santa Rosa: $49k78597 · South Padre Island: $68k785867852178566785837856978597785507857878552785207852678593785597857578520 · Brownsville: $50k78521 · Brownsville: $45k78526 · Brownsville: $71k78535 · Combes: $39k78550 · Harlingen: $49k78552 · Harlingen: $70k78559 · La Feria: $49k78566 · Los Fresnos: $60k78567 · Los Indios: –78569 · Lyford: $59k78575 · Olmito: $72k78578 · Port Isabel: $52k78583 · Rio Hondo: $52k78586 · San Benito: $46k78592 · Santa Maria: –78593 · Santa Rosa: $49k78597 · South Padre Island: $68k785867852178566785837856978597785507857878520
The residential ZIP codes of Cameron County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $48,649 and $60,187.

They carry 14 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 17 residential ZIP codes in Cameron County

16 ZIP codes lie mainly in Cameron County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Cameron County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
78521 Brownsville 87,380 933 $45k $100k 100%
78520 Brownsville 64,740 1,628 $50k $146k 100%
78526 Brownsville 60,012 1,266 $71k $185k 100%
78550 Harlingen 53,335 566 $49k $131k 100%
78586 San Benito 50,964 334 $46k $87k 100%
78552 Harlingen 42,332 881 $70k $169k 100%
78566 Los Fresnos 25,110 181 $60k $154k 100%
78559 La Feria 12,169 335 $49k $104k 100%
78578 Port Isabel 10,016 176 $52k $196k 100%
78593 Santa Rosa 5,455 142 $49k $85k 100%
78583 Rio Hondo 5,236 56 $52k $162k 100%
78575 Olmito 4,575 549 $72k $250k 100%
78597 South Padre Island 2,935 332 $68k $527k 100%
78592 Santa Maria 677 196 – $77k 100%
78535 Combes 425 1,019 $39k $107k 100%
78567 Los Indios 323 232 – $57k 100%

Partly in Cameron County

Residential ZIP codes mainly in another county that reach at least 1% into Cameron County, by their share here
In this county
78569 Lyford 4,342 28 $59k $117k 6%

Download the 22 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

1 ZIP code of Cameron County extends into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Cameron County and in the neighboring counties
ZIPIn CameronElsewhere
785696%Willacy County80%; Hidalgo County15%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Cameron County without a residential area (GeoNames postal codes)
ZIPPostal name
78522Brownsville
78523Brownsville
78551Harlingen
78553Harlingen
78568Lozano

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Cameron County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Cameron County starts with 785.

Three-digit prefixes of Cameron County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Cameron County's
PrefixSectional centerHereAll codes
785McAllen, TX (SCF 785)2268

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.