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ZIP CODE TABULATION AREA

78633

Texas · 29,309 residents · 78.5 sq mi
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With 29,309 people, ZIP 78633 is a ZIP code in Williamson County. At a median age of 67.3, this is an older place than the country as a whole. Owners hold 92% of the housing stock. 56% of adults hold a bachelor's degree, against 36% nationally. The poverty rate is 4.2%, under the national 12.5%. 5% of people in this ZIP code were born outside the United States. Among the 17 ZIP codes in Williamson County, 78633 ranks 10th by median household income.

$100,936
US average: $82,259
$69,806
US average: $44,673
$464,600
US average: $376,019
55.9%
US average: 35.6%
Land area
78.5 sq mi
Age, sex & households
Under 18
9.1%
Age 65+
55.0%
46.1%
53.9%
2.05 people
Race & ethnicity · 2024
2024
White, non-Hispanic86.8%(25,431)
Black0.8%(248)
Hispanic / Latino6.8%(1,983)
Asian2.3%(679)
Other3.3%(968)
30
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
4.6
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
LOWEST10TH OF 17HIGHEST
Adjacent ZIPs
76527$81,574
76530$106,250
76537$98,199
Frequently asked

How many people live in ZIP code 78633?

ZIP code 78633 has about 29,309 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 78633?

The typical household in ZIP code 78633 earns about $100,936 a year. Half of households make more than that, and half make less.

Is ZIP code 78633 expensive?

In ZIP code 78633, the median home is worth about $464,600, and the typical rent is about $1,998 a month.

How educated are people in ZIP code 78633?

About 55.9% of adults age 25 and over in ZIP code 78633 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 78633?

About 4.2% of people in ZIP code 78633 live below the federal poverty line.

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