ZIP Code 78642 — Liberty Hill, TX

About ZIP 78642

ZIP code 78642 serves Liberty Hill in Williamson, Texas. It centers near 30.6630°, -97.9316° and, by population, qualifies as a sizable suburban ZIP. Roughly 20,699 people are estimated to live within its boundaries based on the U.S. Census Bureau's American Community Survey 5-Year Estimates (2018–2022).

The median household earns about $117,490 per year here. The typical owner-occupied home is valued near $454,600, and asking rents on the open market sit around $1,415 per month. Compared to the rest of Texas, that makes 78642 significantly more expensive than typical for the state. Looking at the entire state, the average ZIP code reports a median income closer to $47,840 and a median home value of $137,461.

The median resident is around 36.2 years old, and roughly 19.4% of the population holds at least a bachelor's degree. Unemployment estimates from the same Census release put the share of unemployed adults around 3.4% of the total population (the labor-force-only rate is higher, since not every resident is counted as "in the labor force").

Cost of living read

If you're considering a move into 78642, the most useful exercise is to compare the housing math against your current ZIP. Here, a typical home runs $454,600 and a typical rental runs $1,415 a month. Translate that into your own budget:

• At a 7% 30-year mortgage with 20% down, financing the median home here lands monthly principal & interest near $2,420 — before property tax, insurance, or HOA dues.
• Renting the median unit at $1,415/mo costs roughly $16,980 per year, or about 14.5% of the local median household income.
• For movers from substantially cheaper or more expensive metros, the home-value gap (+$317,139 versus the state average of $137,461) is often the single biggest line item to plan for.

Who lives here

The age and education profile of a ZIP tells you a lot about what daily life feels like there. With a median age of 36.2 and a population of 20,699, ZIP 78642 reads as a working-age neighborhood with a mix of young professionals and young families.

Geography & nearby ZIPs

This ZIP centers at 30.6630, -97.9316. The eight closest neighboring ZIP codes are listed below — useful if you're scoping out the surrounding area, comparing schools, or just want a feel for the broader neighborhood than this one boundary captures.

How to use this profile

Treat ZipLocal Guide as a starting point — never the final word — when you're researching a relocation. The Census ACS data on this page are reliable medians for the ZIP code tabulation area, but they tell you nothing about which side of the freeway you should live on, which streets the local high schoolers actually walk to school, or how the neighborhood has changed since the 2022 estimate window. For those, walk the area, talk to people on the street, and verify your assumptions with a local agent or community group.

If you find this neighborhood interesting, the easiest next step is to view all ZIPs in Liberty Hill or browse the rest of Texas.