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San Antonio ZIP codes: US ZIP code list for San Antonio, Texas (TX)

Quick answer

San Antonio, Texas has 12 US ZIP codes, running 78201 to 78249 inside Bexar County. Each carries the same 8.25% combined sales tax rate. ZIP boundaries are postal delivery routes, not tax boundaries — a code that crosses a city or district line can hold more than one rate, so destination-based sellers should validate by full street address.

ZIP codes
12Median covered metro: 12
Number span
4978201 to 78249
Sorting prefixes
782USPS sectional centers
Sales tax
8.25%Same in every listed code

San Antonio ZIP code footprint

How San Antonio's ZIP footprint compares with national norms.

12 ZIP codes are listed for San Antonio, covering a population of 1,495,295. They span 49 numbers, 78201 through 78249. The median covered metro on this site lists 12 codes; San Antonio ranks 2 of 94 by count. Large metros carry more codes because USPS splits a delivery area once carrier volume outgrows one route cluster, not because the city is geographically bigger.

All 12 codes share the 782 prefix. That first trio is the sectional center facility — the USPS plant that sorts mail for the region — so every piece addressed to San Antonio passes through one facility. The range runs 78201 to 78249.

ZIP boundaries are carrier routes, not city limits. USPS redraws them when delivery volume shifts; Texas redraws tax and municipal lines on a different schedule entirely. A San Antonio mailing address does not prove an address sits inside San Antonio city limits, and a single code can straddle the boundary.

ZIP codes in San Antonio

All within Bexar County, Texas.

Source: Texas Comptroller of Public Accounts rate tables · rates as published for 2026

Why ZIP-based rate lookup is unreliable

USPS redraws ZIP codes when carrier routes change. Tax jurisdictions move with annexations, county lines and voter-approved districts. The two never line up. In Texas, local jurisdictions set their own increments, so remote sellers should validate the full delivery address against the Texas Comptroller of Public Accounts lookup at the time of sale.

Frequently asked questions

Common questions about this area.

How many ZIP codes does San Antonio have?
12. They run from 78201 to 78249 across 1 sectional center prefix (782), spanning 49 numbers.
What is the first ZIP code in San Antonio, TX?
78201 is the lowest-numbered code serving San Antonio. Numbering runs roughly northeast to west nationally, so San Antonio's 782 prefix reflects its position in the Texas sorting network, not its size.
Do all San Antonio ZIP codes have the same sales tax rate?
Inside San Antonio city limits, yes — 8.25% applies. A code that extends past the city line can carry a different rate on part of its territory. Validate by street address, not ZIP, when the sale is destination-based. Confirm current rates with your state revenue agency before filing.

San Antonio sales tax breakdown and calculator

Other San Antonio datasets on this site.

Statewide: Texas cities · Texas ZIP codes · Texas sales tax · Texas counties