ZIP code · Austin · Texas · United States
ZIP code 78742 — Austin
ZIP code 78742 serves Austin, Texas.
- Postal code
- 78742Single source Value from one source, not cross-checked.
- City
- Austin
- County
- Travis FIPS 48453
- State
- Texas
- Country
- United States
- Coordinates
- 30.2313, -97.6703 — precision precise (locality)
View on OpenStreetMap - Population
- 638 (ZCTA, ACS 5-year)
- Population density
- 108 / sq mi
- Land area
- 5.9 sq mi (15.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $74,453
- Per-capita income
- $33,193
- Median age
- 46.3
- Households
- 269
- Housing units
- 269
- Median gross rent
- $1,094 / month
- Congressional district
- TX-35 (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 78742 with another ZIP · ZIPs within 25 miles · distance from 78742
Map of ZIP code 78742
Climate — monthly normals
Warmest month Aug (avg high 97°F), coldest Jan (avg low 38°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 63 | 66 | 73 | 80 | 87 | 93 | 96 | 97 | 91 | 83 | 72 | 64 |
| Avg low °F | 38 | 42 | 49 | 56 | 65 | 72 | 73 | 73 | 67 | 57 | 47 | 40 |
| Precip in | 2.8 | 1.9 | 2.9 | 2.4 | 5.0 | 3.4 | 2.2 | 2.5 | 3.0 | 4.3 | 2.7 | 2.6 |
NOAA 1991–2020 climate normals from the nearest station: AUSTIN BERGSTROM AP (3.4 mi) · NOAA NCEI
Places in ZIP 78742
- 1 restaurants & cafés
- 1 bars & pubs
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