Houston ZIP codes: US ZIP code list for Houston, Texas (TX)
Quick answer
Houston, Texas has 12 US ZIP codes, running 77002 to 77098 inside Harris 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
- 9777002 to 77098
- Sorting prefixes
- 770USPS sectional centers
- Sales tax
- 8.25%Same in every listed code
Houston ZIP code footprint
How Houston's ZIP footprint compares with national norms.
12 ZIP codes are listed for Houston, covering a population of 2,314,157. They span 97 numbers, 77002 through 77098. The median covered metro on this site lists 12 codes; Houston 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 770 prefix. That first trio is the sectional center facility — the USPS plant that sorts mail for the region — so every piece addressed to Houston passes through one facility. The range runs 77002 to 77098.
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 Houston mailing address does not prove an address sits inside Houston city limits, and a single code can straddle the boundary.
ZIP codes in Houston
All within Harris County, Texas.
- 770028.25%
- 770048.25%
- 770068.25%
- 770088.25%
- 770098.25%
- 770198.25%
- 770248.25%
- 770278.25%
- 770368.25%
- 770568.25%
- 770778.25%
- 770988.25%
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 Houston have?
- 12. They run from 77002 to 77098 across 1 sectional center prefix (770), spanning 97 numbers.
- What is the first ZIP code in Houston, TX?
- 77002 is the lowest-numbered code serving Houston. Numbering runs roughly northeast to west nationally, so Houston's 770 prefix reflects its position in the Texas sorting network, not its size.
- Do all Houston ZIP codes have the same sales tax rate?
- Inside Houston 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.
Houston sales tax breakdown and calculator
More Houston data
Other Houston datasets on this site.
- Houston population and income
- Houston sales tax rate
- Houston property tax
- Houston cost of living
- Houston home values and rent
- Houston crime rates
- Houston public schools
- Houston weather normals
- Houston commute times
Statewide: Texas cities · Texas ZIP codes · Texas sales tax · Texas counties