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ZIP CODE TABULATION AREA

78642

Texas · 26,434 residents · 111 sq mi
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ZIP 78642 is a ZIP code of 26,434 people in Williamson County. 83% of homes are owner-occupied. Median household income runs $132,958, well clear of the $82,259 US median. Poverty is uncommon here, at 3.3% of people in this ZIP code. 44% of adults hold a bachelor's degree or higher. Getting to work takes 35 minutes on average. Among the 17 ZIP codes in Williamson County, 78642 ranks 3rd by median household income.

$132,958
US average: $82,259
$51,464
US average: $44,673
$506,600
US average: $376,019
44.5%
US average: 35.6%
Land area
111 sq mi
Age, sex & households
Under 18
29.9%
Age 65+
11.0%
48.2%
51.8%
3.03 people
Race & ethnicity · 2024
2024
White, non-Hispanic62.1%(16,423)
Black1.6%(427)
Hispanic / Latino28.2%(7,460)
Asian4.6%(1,218)
Other3.4%(906)
66
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.8
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Williamson County
Income rank vs other ZIPs
LOWEST3RD OF 17HIGHEST
Adjacent ZIPs
76527$81,574
76530$106,250
76537$98,199
Frequently asked

How many people live in ZIP code 78642?

ZIP code 78642 has about 26,434 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 78642?

The typical household in ZIP code 78642 earns about $132,958 a year. Half of households make more than that, and half make less.

Is ZIP code 78642 expensive?

In ZIP code 78642, the median home is worth about $506,600, and the typical rent is about $1,658 a month.

How educated are people in ZIP code 78642?

About 44.5% of adults age 25 and over in ZIP code 78642 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 78642?

About 3.3% of people in ZIP code 78642 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024