Find the last 4 digits (ZIP+4) for an address in 78717

ZIP 78717, Austin, TX is filled in. Just type the street address.

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ZIP Code 78717 – Austin, TX

Austin, Texas · Williamson County · Central time

ZIP code78717
CityAustin
StateTexas
CountyWilliamson County
Population37,262
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area13.04 sq mi
Center (lat, long)30.4895, -97.7538

Area codes in this area

512737

These are the area codes that most often serve ZIP 78717 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

78729 Austin · 2.2 mi78750 Austin · 3.9 mi78613 Cedar Park · 4.1 mi78630 Cedar Park · 4.1 mi78681 Round Rock · 4.2 mi78728 Austin · 4.7 mi78727 Austin · 4.7 mi78759 Austin · 6 mi

About ZIP 78717

ZIP code 78717 is assigned to Austin, Texas. It lies in Williamson County. Its Census area covers about 13.04 square miles of land. The closest neighboring ZIP is 78729 (Austin), about 2.2 miles away.

Every address in 78717 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources