Texas has more ZIP codes than any other state, but the exact count depends on what you include:
- One map-based dataset counts 1,990 ZIP areas, from 73960 (Texhoma, in the Panhandle) to 79938 (El Paso).
- Another source lists 2,598 ZIP codes in total, which includes PO Box and unique ZIPs.
No single city dominates. Houston has the largest block with 97 ZIP areas, which is under 5% of the state, and the five biggest places together account for only about 14%.
Major Texas ZIP codes by city
| City | Main ZIP range | Common examples |
|---|---|---|
| Dallas | 75201 to 75398 | 75201 (Downtown) |
| Fort Worth | 76101 to 76199 | 76102 (Downtown) |
| Houston | 77001 to 77099, 77200 to 77299 | 77002 (Downtown) |
| Austin | 78701 to 78799 | 78701 (Downtown) |
| San Antonio | 78201 to 78299 | 78201 per one source |
| El Paso | 799xx | 79912, 79936 |
Note that Downtown San Antonio is often given as 78205, while one source lists 78201, so confirm by address.
Houston area ZIP codes
- Houston proper: 77001 to 77099 and 77200 to 77299. A single Houston ZIP can cover a large area.
- 77002: Downtown Houston.
- 77010: the wealthiest ZIP in Texas by adjusted gross income, according to one source, and also in Houston.
- Suburbs in the 77xxx range: Katy (77494, the most populous ZIP in Texas per one source), Cypress (77429) and Pearland (77584).
- Several Houston ZIPs have large populations, such as 77084, 77083 and 77095.
Austin, San Antonio and West Texas ZIP codes
- Austin: mainly 78701 to 78799, covering Downtown and nearby areas. Round Rock and Pflugerville also fall in the 786xx and 787xx range. Some neighbourhood labels on guide sites for Austin ZIPs are inconsistent, so use the USPS lookup.
- San Antonio: 78201 to 78299, including areas like Alamo Heights and Stone Oak.
- South Texas: Laredo is 78040 and Brownsville is 78521, both in the 78xxx range.
- West Texas and the Panhandle: the 79 range, including 799xx for El Paso. San Angelo uses 76901.
- Far West Texas: some El Paso-area addresses use 885xx ZIPs.
Texas ZIP code range
- Texas ZIP codes start with 7 or 8.
- Common prefixes are 73, 75, 76, 77, 78 and 79, plus 88 for far West Texas near El Paso.
- By region:
- 75 for Dallas and North Texas.
- 76 for Fort Worth and parts of West Texas.
- 77 for Houston and Southeast Texas.
- 78 for San Antonio, Austin and South Texas.
- 79 for West Texas and the Panhandle.
- Overall, the range runs from about 73960 to 79938, plus the 885xx codes.
How to find the right Texas ZIP
- Use the full street address in the USPS “Look Up a ZIP Code” tool, which is the authoritative source.
- Don’t assume the city name decides the ZIP. Many ZIPs cross city and county lines, so mailing addresses can use a city name different from the legal city.
- Add the ZIP+4 for faster, more accurate delivery.
- Check the ZIP type. PO Box and unique ZIPs aren’t for street delivery to homes.
Popular Texas ZIP codes
- 75201: Downtown Dallas.
- 76102: Downtown Fort Worth.
- 77002: Downtown Houston.
- 78701: Downtown Austin.
- 78201: San Antonio (per one source).
- 77494: Katy, the most populous ZIP in Texas per one source.
- 77010: Houston, the wealthiest by adjusted gross income per one source.
- 79912 and 79936: El Paso, with 79936 being one of the largest by population in the dataset.
FAQ
How many ZIP codes does Texas have?
About 1,990 ZIP areas, or roughly 2,600 if you count PO Box and unique ZIPs, depending on the source.
What numbers do Texas ZIP codes start with?
7 or 8, most often 73, 75, 76, 77, 78 or 79, plus 88 near El Paso.
Which Texas city has the most ZIP codes?
Houston, with 97.
What is the largest Texas ZIP by population?
77494 in Katy, according to one source.
Is Dallas 75xxx?
Yes, Dallas is in the 75 range and Fort Worth in the 76 range.
Which ZIPs cover Houston?
77001 to 77099 and 77200 to 77299, with suburbs in other 77xxx ranges.
Can ZIP codes change?
Yes. The USPS reviews and updates them as areas grow, so verify before relying on one for anything official.