ZIP code 78642
Where is ZIP code 78642?
Liberty Hill, Texas
Williamson County · Standard ZIP code
ZIP code 78642 belongs to Liberty Hill, Texas in Williamson County. 78642 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area codes 512 and 737. About 26,434 people live in the 78642 area, where the median household income is $132,958. The closest ZIP codes are 78641 (Leander, 7 mi southeast), 78646 (Leander, 7.5 mi southeast) and 78605 (Bertram, 9 mi northwest).
| ZIP code | 78642 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Liberty Hill |
| State | Texas (TX) |
| County | Williamson County |
| Time zone | Central Time · now |
| Area codes | 512, 737 |
| Coordinates | 30.663, -97.9316 map |
| 3-digit prefix | 786 |
Population and income in 78642
| Population | 26,434 · higher than 76% of Texas ZIP codes |
|---|---|
| People per square mile | 238 · higher than 61% of Texas ZIP codes |
| Median age | 36.9 years · lower than 58% of Texas ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $132,958 · higher than 95% of Texas ZIP codes |
| Income per person | $51,464 |
| Below the poverty line | 3.3% |
| Bachelor’s degree or higher | 45% of adults 25+ |
| Median home value | $506,600 · higher than 94% of Texas ZIP codes |
| Median rent | $1,658 a month |
| Housing units | 8,963 |
| Households | 8,696 (3.03 people on average) |
| Owners / renters | 83% / 17% |
| Land area | 111.13 sq mi (plus 0.56 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78642. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78642
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78641 | Leander, TX | 7 mi SE | Standard |
| 78646 | Leander, TX | 7.5 mi SE | PO Box only |
| 78605 | Bertram, TX | 9 mi NW | Standard |
| 78628 | Georgetown, TX | 10.8 mi E | Standard |
| 78633 | Georgetown, TX | 11.2 mi E | Standard |
| 78613 | Cedar Park, TX | 12.8 mi SE | Standard |
| 78630 | Cedar Park, TX | 12.8 mi SE | PO Box only |
| 76527 | Florence, TX | 13.4 mi NE | Standard |
| 78645 | Leander, TX | 14.9 mi S | Standard |
| 78627 | Georgetown, TX | 15.3 mi E | PO Box only |
| 78717 | Austin, TX | 15.4 mi SE | Standard |
| 78626 | Georgetown, TX | 15.6 mi E | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78642 or measure the distance to another ZIP code.
How to address mail to 78642
123 MAIN ST
LIBERTY HILL TX 78642
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (78642-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 78642?
- 78642 is a Liberty Hill, Texas ZIP code.
- What county is 78642 in?
- ZIP code 78642 is in Williamson County, Texas.
- What time zone is ZIP code 78642 in?
- 78642 is in the Central Time zone (America/Chicago).
- What area code is 78642?
- Phone numbers in ZIP code 78642 use area codes 512 and 737.
- What is the population of ZIP code 78642?
- About 26,434 people live in ZIP code 78642, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78642?
- The median household income in 78642 is $132,958 a year, higher than 95% of Texas ZIP codes.
- What ZIP codes are near 78642?
- The nearest ZIP codes to 78642 are 78641 (Leander, 7 miles), 78646 (Leander, 7.5 miles), 78605 (Bertram, 9 miles) and 78628 (Georgetown, 10.8 miles).