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ZIP CODE TABULATION AREA

78231

Texas · 9,744 residents · 4.09 sq mi
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ZIP 78231 is home to 9,744 people in Bexar County. 66% of adults hold a bachelor's degree, against 36% nationally. That is roughly 51% ahead of the Bexar County median. Density works out to 2,383 people per square mile. Poverty is uncommon here, at 5.8% of people in this ZIP code. The median household earns $109,183, about 33% above the national median. Among the 68 ZIP codes in Bexar County, 78231 ranks 11th by median household income.

$109,183
US average: $82,259
$57,828
US average: $44,673
$401,800
US average: $376,019
65.7%
US average: 35.6%
Land area
4.09 sq mi
Age, sex & households
Under 18
20.8%
Age 65+
20.4%
48.6%
51.4%
2.44 people
Race & ethnicity · 2024
2024
White, non-Hispanic48.9%(4,764)
Black4.5%(443)
Hispanic / Latino39.3%(3,830)
Asian3.7%(356)
Other3.6%(351)
75
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.7
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Bexar County
Income rank vs other ZIPs
LOWEST11TH OF 68HIGHEST
Adjacent ZIPs
78002$66,744
78023$134,007
78073$69,635
78101$111,280
Frequently asked

How many people live in ZIP code 78231?

ZIP code 78231 has about 9,744 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 78231?

The typical household in ZIP code 78231 earns about $109,183 a year. Half of households make more than that, and half make less.

Is ZIP code 78231 expensive?

In ZIP code 78231, the median home is worth about $401,800, and the typical rent is about $1,393 a month.

How educated are people in ZIP code 78231?

About 65.7% of adults age 25 and over in ZIP code 78231 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 78231?

About 5.8% of people in ZIP code 78231 live below the federal poverty line.

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