ZIP codes in Webb County

11 ZIPs touch Webb County, Texas. The blue dashed line is the county border; orange ZIPs reach into it.

11

ZIP codes

1

cross the county line

270,966

people in these ZIPs

254

counties in TX

Most people

Webb County ZIP list

Questions people actually ask

How many ZIP codes are in Webb County, Texas?

11 ZIP codes reach into Webb County, including 1 PO Box or single-address ZIPs placed by the town they serve. 1 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Webb County has the most people?

78046 (Laredo) has about 72,951 residents, the most of any ZIP touching Webb County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Webb County and another county?

Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Webb County. For one address, pin the exact spot on the ZIP finder to see its county.

Where does this list come from?

ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.

Updated 2026-11-10 · Where the data comes from