ZIP code · Austin · Texas · United States
ZIP code 78738 — Austin
ZIP code 78738 serves Austin, Texas.
- Postal code
- 78738Single source Value from one source, not cross-checked.
- City
- Austin
- County
- Travis FIPS 48453
- State
- Texas
- Country
- United States
- Coordinates
- 30.3337, -97.9824 — precision precise (locality)
View on OpenStreetMap - Population
- 28,790 (ZCTA, ACS 5-year)
- Population density
- 684 / sq mi
- Land area
- 42.1 sq mi (109 km²) (ZCTA, ACS 5-year)
- Median household income
- $169,911
- Per-capita income
- $88,897
- Median age
- 43.4
- Households
- 11,320
- Housing units
- 11,907
- Median home value
- $754,600
- Median gross rent
- $1,915 / month
- Congressional district
- TX-10 (119th Congress)
- USDA hardiness zone
- 9a (20 to 25 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
Tools: compare 78738 with another ZIP · ZIPs within 25 miles · distance from 78738
Map of ZIP code 78738
Climate — monthly normals
Warmest month Aug (avg high 95°F), coldest Jan (avg low 39°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 60 | 65 | 72 | 79 | 85 | 91 | 94 | 95 | 89 | 80 | 69 | 61 |
| Avg low °F | 39 | 43 | 49 | 56 | 64 | 70 | 72 | 72 | 66 | 58 | 48 | 41 |
| Precip in | 2.6 | 2.1 | 2.9 | 2.6 | 4.3 | 3.7 | 2.1 | 2.1 | 3.6 | 4.0 | 2.9 | 2.7 |
NOAA 1991–2020 climate normals from the nearest station: DRIPPING SPRINGS 6 E (7.9 mi) · NOAA NCEI
Places in ZIP 78738
- 10 schools
- 8 hospitals & clinics
- 7 doctors & dentists
- 2 pharmacies
- 2 supermarkets
- 49 restaurants & cafés
- 3 bars & pubs
- 17 parks
- 14 playgrounds
- 9 gyms & sports centres
- 1 libraries
- 5 post offices
- 2 places of worship
- 12 banks
- 8 gas stations
- 8 EV charging stations
- 3 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page