ZIP code · Liberty Hill · Texas · United States
ZIP code 78642 — Liberty Hill
ZIP code 78642 serves Liberty Hill, Texas.
- Postal code
- 78642Single source Value from one source, not cross-checked.
- City
- Liberty Hill
- County
- Williamson FIPS 48491
- State
- Texas
- Country
- United States
- Coordinates
- 30.6630, -97.9316 — precision precise (locality)
View on OpenStreetMap - Population
- 24,146 (ZCTA, ACS 5-year)
- Population density
- 217 / sq mi
- Land area
- 111.1 sq mi (287.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $128,086
- Per-capita income
- $50,051
- Median age
- 36.8
- Households
- 7,980
- Housing units
- 8,399
- Median home value
- $486,800
- Median gross rent
- $1,475 / month
- Congressional district
- TX-31 (119th Congress)
- USDA hardiness zone
- 8b (15 to 20 °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 78642 with another ZIP · ZIPs within 25 miles · distance from 78642
Map of ZIP code 78642
Climate — monthly normals
Warmest month Aug (avg high 95°F), coldest Jan (avg low 40°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 60 | 63 | 71 | 78 | 84 | 91 | 94 | 95 | 88 | 79 | 68 | 61 |
| Avg low °F | 40 | 43 | 50 | 57 | 64 | 71 | 73 | 73 | 68 | 60 | 49 | 41 |
| Precip in | 1.9 | 2.1 | 2.7 | 2.9 | 4.0 | 2.8 | 2.0 | 2.9 | 3.2 | 3.5 | 2.9 | 2.3 |
NOAA 1991–2020 climate normals from the nearest station: AUSTIN 33 NW (9.5 mi) · NOAA NCEI
Places in ZIP 78642
- 9 schools
- 8 hospitals & clinics
- 2 doctors & dentists
- 1 pharmacies
- 1 supermarkets
- 24 restaurants & cafés
- 4 bars & pubs
- 17 parks
- 26 playgrounds
- 4 gyms & sports centres
- 1 post offices
- 7 places of worship
- 3 banks
- 9 gas 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