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County ZIP codes · Texas · FIPS 48479

Webb County, TX ZIP Codes

Webb County, Texas has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 10 residential and 1 for PO boxes or a single organization. 1 of the residential ones extends into a neighboring county. Median household income ranges from $36,092 in 78040 to $90,608 in 78045 (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Webb County?

78019 · Encinal: $51k78040 · Laredo: $36k78041 · Laredo: $62k78043 · Laredo: $54k78044 · Laredo: –78045 · Laredo: $91k78046 · Laredo: $56k78344 · Bruni: $73k78369 · Mirando City: $120k78371 · Oilton: –78045780197804378046783447837178369780447804178019 · Encinal: $51k78040 · Laredo: $36k78041 · Laredo: $62k78043 · Laredo: $54k78044 · Laredo: –78045 · Laredo: $91k78046 · Laredo: $56k78344 · Bruni: $73k78369 · Mirando City: $120k78371 · Oilton: –78045780197804378046783447837178369780447804178019 · Encinal: $51k78040 · Laredo: $36k78041 · Laredo: $62k78043 · Laredo: $54k78044 · Laredo: –78045 · Laredo: $91k78046 · Laredo: $56k78344 · Bruni: $73k78369 · Mirando City: $120k78371 · Oilton: –780457801978043780467837178369
The residential ZIP codes of Webb 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 $50,992 and $55,826.

They carry 5 postal town names: Laredo, Encinal, Bruni, Mirando City, Oilton.

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

All 10 residential ZIP codes in Webb County

Residential ZIP codes mainly in Webb County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
78046 Laredo 72,951 398 $56k $151k 100%
78045 Laredo 67,333 102 $91k $244k 100%
78041 Laredo 46,550 2,672 $62k $221k 100%
78043 Laredo 45,760 258 $54k $171k 100%
78040 Laredo 35,709 5,664 $36k $119k 100%
78019 Encinal 1,836 2 $51k $82k 84%
78344 Bruni 295 2 $73k $138k 100%
78044 Laredo 220 3 – $221k 100%
78369 Mirando City 211 3 $120k $121k 100%
78371 Oilton 101 1 – – 100%

Download the 11 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 Webb County extends into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Webb County and in the neighboring counties
ZIPIn WebbElsewhere
7801984%La Salle County 16%

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

PO Box and single-organization ZIP codes

ZIP codes in Webb County without a residential area (GeoNames postal codes)
ZIPPostal name
78042Laredo

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Webb County's ZIP codes use 2 prefixes: 780 and 783.

Three-digit prefixes of Webb 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 Webb County's
PrefixSectional centerHereAll codes
780 San Antonio, TX (SCF 780) 8 59
783 Corpus Christi, TX (SCF 783) 3 49

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