Austin has no single ZIP code. One dataset counts 73 ZIP codes covering Austin, plus 8 more that overlap the city but carry a different postal city name. Of the 73, 46 are standard, 8 are unique and 19 are PO Box ZIPs. Together they cover about 1.15 million people.
Most street-delivery ZIPs fall in the 787xx range, and 78701 is Downtown. Many online “Austin ZIP guides” are SEO pages with errors (some mislabel neighbourhoods or suburbs), so I’ve used GIS data where I could and flagged anything from general knowledge.
Austin Texas ZIP codes by area
One guide groups the main residential ZIPs by region:
- Downtown: 78701.
- North Austin: 78753, 78758 and 78759.
- South Austin: 78704, 78745 and 78748.
- East Austin: 78702, 78721 and 78741.
- West Austin: 78731, 78733 and 78746.
From general knowledge, a few more to know:
- 78703 for Tarrytown and Clarksville.
- 78705 and 78712 for the University of Texas area.
- 78751 and 78756 for Hyde Park and nearby.
- 78723 for the Mueller area.
Some ZIPs are very large by population. 78745 has about 63,000 residents, and 78741, 78744 and 78748 each have 57,000 or more. On the other end, 78701 (Downtown) is only about 1.7 square miles with roughly 11,700 residents, while 78737 and 78738 cover over 44 and 47 square miles respectively.
Several ZIPs listed with Austin extend into nearby cities that use a different postal name, such as 78660, 78613, 78641, 78653, 78681, 78610 and 78617. Check by address before assuming a ZIP puts you inside Austin city limits.
Austin ZIP code range
- The main city range is 78701 to 78799.
- The full Austin list runs from 73301 to 78799. The 733xx codes (73301 and 73344) are outliers and are likely PO Box or unique ZIPs.
- Suburban and overlapping ZIPs sit in the 786xx range.
How to find the right Austin ZIP
- Use the full street address in the USPS “Look Up a ZIP Code” tool, which is the authoritative source.
- Don’t rely on the postal city name. Austin’s ZIPs overlap with nearby cities, and some addresses outside city limits still use “Austin.”
- 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 Austin ZIP codes
- 78701: Downtown Austin.
- 78702: East Austin.
- 78703: Tarrytown and Clarksville.
- 78704: South Austin, one of the more populous central ZIPs at about 53,000 residents.
- 78705: the University of Texas and campus area.
- 78745: South Austin, the largest by population in the dataset I found.
- 78758 and 78759: North Austin.
- 78746: West Austin.
FAQ
What is the ZIP code for Austin, Texas?
There isn’t just one. Downtown is 78701, and most of the city uses 787xx codes.
How many ZIP codes does Austin have?
73, plus 8 overlapping ZIPs with other postal city names.
What is the ZIP for Downtown Austin?
78701.
What are the first digits of Austin ZIPs?
Mostly 787, with 733 (PO Box/unique) and 786 (suburbs) also appearing.
Is Pflugerville the same as 78758?
No. One SEO guide confuses this. Pflugerville uses 78660, which appears in the overlapping list. Check any suburb by address.
What are the biggest Austin ZIPs by population?
78745, 78741, 78744 and 78748 are among the largest in the GIS table.
Where is the University of Texas ZIP?
Around 78705 and 78712, per the GIS data, but verify by address.