ZIP Code 78642
standardSource:
Liberty Hill · Williamson County · Texas
- Population
- 9,467
- Median income
- $132,958
- Median home value
- $506,600
- Bachelor's or higher
- 44.5%
- Land area
- 259.4 sq mi
37/sq mi
▲ 74% vs US
higher than 94% of US ZIPs
▲ 82% vs US
higher than 87% of US ZIPs
Median age 36.9
Chicago
ZIP code 78642 in Liberty Hill, Texas has a population of 9,467. The median household income is $132,958, which is 74% above the national average. Median home value is $506,600, 82% above the US average. 44.5% of residents hold a bachelor's degree or higher.
ZIP code 78642 is classified by USPS as a standard delivery area and covers roughly 259.4 square miles in Liberty Hill, Williamson County, Texas. The area is home to 9,467 residents, producing a population density of 37 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 78642 against Texas and the nation.
On the economic side, the median household income for ZIP 78642 sits at $132,958 (76% above the Texas average), while per-capita income is $51,464. The poverty rate stands at 3.3% and the unemployment rate at 4.6%. On housing, the median home value is $506,600 (105% above the state average) with median rent at $1,658 per month, and 82.9% of occupied units are owner-occupied, a direct signal of whether 78642 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 44.5% of adults hold a bachelor's degree or higher, the median age is 36.9, and the average commute is 35 minutes. We also surface 3 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Williamson County, so you can benchmark 78642 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 78642
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 78642.
- Construction
Construction
155 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
80 establishments
- Retail trade 60
Retail trade
60 establishments
- Accommodation and food services 53
Accommodation and food services
53 establishments
- Other services (except public administration) 53
Other services (except public administration)
53 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 78642, Liberty Hill, TX · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
9,467
Population
259.4
Area (sq mi)
37
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 78642?
36.9
Median Age
48.2%
Male
51.8%
Female
11.3%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$132,958
Median Household Income
+76% vs state
$51,464
Per Capita Income
3.3%
Poverty Rate
4.6%
Unemployment Rate
35.0 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
8,963
Total Housing Units
8,696
Occupied Units
267
Vacant Units
3.03
Avg Household Size
Occupancy Type
$506,600
Median Home Value
+105% vs state
$1,658
Median Rent
2014
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
-6.2%
YoY Change (2024)
340
HPI Index (2000 = 100)
+240%
Total Change Since 2000
Home values in ZIP 78642 have decreased 6.2% over the past year (2024). Since 2000, this ZIP has seen +240% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +1.9% | 221 |
| 2021 | +24.3% | 274 |
| 2022 | +23.9% | 340 |
| 2023 | +6.7% | 363 |
| 2024 | -6.2% | 340 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 635 business establishments in ZIP 78642, employing approximately 4,135 people with a combined annual payroll of $217,606,000.
635
Businesses
4,135
Employees
$217.6M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 155 | 24.4% |
| Professional, scientific, and technical services | 80 | 12.6% |
| Retail trade | 60 | 9.4% |
| Accommodation and food services | 53 | 8.3% |
| Other services (except public administration) | 53 | 8.3% |
| Real estate and rental and leasing | 45 | 7.1% |
| Health care and social assistance | 40 | 6.3% |
| Administrative and support and waste management and remediation services | 34 | 5.3% |
| Manufacturing | 23 | 3.6% |
| Finance and insurance | 23 | 3.6% |
| Transportation and warehousing | 21 | 3.3% |
| Wholesale trade | 20 | 3.1% |
| Arts, entertainment, and recreation | 9 | 1.4% |
| Information | 7 | 1.1% |
| Educational services | 6 | 0.9% |
| Utilities | 3 | 0.5% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 78642 vs 78641 →
More ZIP Codes in Williamson County
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Frequently Asked Questions
What county is ZIP code 78642 in? ▼
What is the population of ZIP code 78642? ▼
What is the median household income in ZIP 78642? ▼
What is the average home value in ZIP 78642? ▼
What is the demographic makeup of ZIP 78642? ▼
How many businesses are in ZIP code 78642? ▼
What are the main industries in ZIP code 78642? ▼
How have home values changed in ZIP code 78642? ▼
What is the education level in ZIP code 78642? ▼
What is the average commute time in ZIP 78642? ▼
What percentage of residents own vs. rent in ZIP 78642? ▼
What is the poverty rate in ZIP code 78642? ▼
ZIP Code Research Guides
Official Data Resources for Liberty Hill, TX
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.